Areas of Triangles and Quadrilaterals

Jun 23, 2012

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Areas of Triangles and Quadrilaterals.

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Areas of Triangles and Quadrilaterals

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Areas of Triangles and Quadrilaterals

Angles-Polygons-Triangles-Quadrilaterals

Angles-Polygons-Triangles-Quadrilaterals. Angles If two lines cross we say they INTERSECT. If two lines in the same plane do not intersect, we say they are PARALLEL. If two lines make square corners at the point of intersection we say the lines are PERPENDICULAR.

591 views • 5 slides

Areas of Parallelograms and Triangles

Areas of Parallelograms and Triangles. Lesson 9-4. Parallelogram. A parallelogram is a quadrilateral where the opposite sides are congruent and parallel. A rectangle is a type of parallelogram, but we often see parallelograms that are not rectangles (parallelograms without right angles).

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6.7 Areas of Triangles and Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals. Honors Geometry. Objectives:. Find the areas of squares, rectangles, parallelograms and triangles. Find the areas of trapezoids, kites and rhombuses. Using Area Formulas.

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10.2 Areas of Other Quadrilaterals

10.2 Areas of Other Quadrilaterals. Essential Questions: How do you find the area of a trapezoid? How do you find the area of a rhombus or a kite?. TRAPEZOIDS. Example 1. Example 2. Practice: Trapezoids.

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6.7 Areas of Triangles and Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals. Geometry Mrs. Spitz Spring 2005. Objectives:. Find the areas of squares, rectangles, parallelograms and triangles. Find the areas of trapezoids, kites and rhombuses. Assignment. pp. 376-378 #3-43. Skip 39 and 40. Using Area Formulas.

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6.7 Areas of Triangles and Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals. Objectives/Assignment. Find the areas of squares, rectangles, parallelograms and triangles Find the areas of trapezoids, kites and rhombuses Assignment: 2-52 even. Using Area Formulas. Postulate 22 : Area of a Square

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Types of Triangles Quadrilaterals

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Areas of Triangles and Quadrilaterals

Areas of Triangles and Quadrilaterals. Using Area Formulas. Area of a Square —The area of a square is the square of the length of its side, or A = s 2 . Area Congruence —If two polygons are congruent, then they have the same area.

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Areas of Parallelograms and Triangles

Areas of Parallelograms and Triangles. Lesson 16.4. Parallelogram. A parallelogram is a quadrilateral where the opposite sides are congruent and parallel. A rectangle is a type of parallelogram, but we often see parallelograms that are not rectangles (parallelograms without right angles).

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Classifying Triangles and Quadrilaterals

COURSE 3 LESSON 8-5. Classifying Triangles and Quadrilaterals. Classify LMN by its sides and angles. The triangle has two sides that are congruent and three acute angles . It is an isosceles acute triangle . 8-5. COURSE 3 LESSON 8-5. Classifying Triangles and Quadrilaterals.

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Constructing triangles and quadrilaterals

Constructing triangles and quadrilaterals . Triangle- a polygon with three sides Quadrilateral- a polygon with four sides . Vocabulary.

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Area of Quadrilaterals and Triangles

Area of Quadrilaterals and Triangles. What is a quadrilateral?. Any polygon with four sides and four vertices (or corners) All sides must be straight. Area of square, rectangle, and parallelogram. Area is a measure of the amount of space contained inside a closed figure

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Developing Formulas for Triangles and Quadrilaterals

Developing Formulas for Triangles and Quadrilaterals. Geometry CP2 (Holt 10-1) K. Santos. Area of a Parallelogram. Area = product of its base and height A= bh Base must be perpendicular to the height b h 5cm 3cm 9cm A = 9(3) A = 27 .

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7.1: Areas of Parallelograms and Triangles

7.1: Areas of Parallelograms and Triangles. Objective: To find the area of a parallelogram and to find the area of a triangle. . Area of a Rectangle:. A = bh b= base h= height. h. b. Area is always in squared units!! Please label!!. Area of a Parallelogram. A = bh b= base h= height.

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Areas of Parallelograms and Triangles!

Areas of Parallelograms and Triangles!. L.T.#1: Be able to find the areas of parallelograms (including rhombuses, rectangles, & squares)! L.T.#2: Be able to find the areas of triangles!. Quick Review:. In a triangle, an altitude goes from a _______ and is ____________ to the opposite side.

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Geometry: Areas of Triangles

Chapter 9.1 C. Geometry: Areas of Triangles. What is a triangle?. Triangles are pretty much just parallelograms cut in HALF. Area of a triangle. There are 2 formulas for triangles A = ½ b x h A = b x h. H E I G H T. 2. BASE. H E I G H T.

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8-5 Areas of Quadrilaterals

8-5 Areas of Quadrilaterals. 8-5 Areas of Quadrilaterals. From the Triangle Area Formula, area formulas for trapezoids, parallelograms and quadrilaterals with perpendicular diagonals can be deduced. 8-5 Areas of Quadrilaterals. 8-5 Areas of Quadrilaterals. Area of a Trapezoid

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6.7 Areas of Triangles and Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals. The area of a Square. Area of a Square. Postulate. If two polygons are congruent, then they have the same area. Area Addition Postulate. The area of a region is the sum of the area of it nonoverlapping parts. The Blue area is

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Triangles & Quadrilaterals

Triangles & Quadrilaterals. Grade 6. Warm up. State True/ False. The shape with three or more sides is a polygon Hexagon has the maximum number of sides. There are 20 diagonals in a Decagon. Fill in the blanks: ________ is not an irregular polygon

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Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals. You can see that the area of parallelogram ABCD is equal to the area of rectangle EBCF. For a parallelogram with base b and height h , the area is given by the formula: A parallelogram = ______.

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Areas of Parallelograms and Triangles

Areas of Parallelograms and Triangles. Lesson 7-1. Thm 7-1 Area of a Rectangle. For a rectangle, A=bh. (Area = base · height). h. b. AREA OF A PARALLELOGRAM. b. h. To do this let’s cut the left triangle and…. b. h. h. slide it…. h. b. h. slide it…. h. b. h. slide it…. h. b.

629 views • 38 slides

Developing Formulas for Triangles and Quadrilaterals

Developing Formulas for Triangles and Quadrilaterals. Geometry H2 (Holt 10-1) K. Santos. Area of a Parallelogram. Area = product of its base and height A= bh Base must be perpendicular to the height b h 5cm 3cm 9cm . Example.

411 views • 14 slides

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Areas of Triangles and Quadrilaterals

Areas of Triangles and Quadrilaterals

Presentation Transcript

Angles-Polygons-Triangles-Quadrilaterals

Areas of Parallelograms and Triangles

6.7 Areas of Triangles and Quadrilaterals

10.2 Areas of Other Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals

Types of Triangles Quadrilaterals

Areas of Triangles and Quadrilaterals

Areas of Parallelograms and Triangles

Classifying Triangles and Quadrilaterals

Constructing triangles and quadrilaterals

Area of Quadrilaterals and Triangles

Developing Formulas for Triangles and Quadrilaterals

7.1: Areas of Parallelograms and Triangles

Areas of Parallelograms and Triangles!

Geometry: Areas of Triangles

8-5 Areas of Quadrilaterals

6.7 Areas of Triangles and Quadrilaterals

Triangles &amp; Quadrilaterals

Honors Geometry Section 5.2 Areas of Triangles and Quadrilaterals

Areas of Parallelograms and Triangles

Developing Formulas for Triangles and Quadrilaterals

Triangles & Quadrilaterals