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Bellwork. Solve for x. 14. Composition/Decomposition Activity. Section 11.2. Bellwork. 2x o. A male punky fish has 9 stripes, while a female punky fish has 8 stripes. If the number of stripes on all the punky fish in a tank totals 86, what is the ratio of male fish to female fish?
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Bellwork Solve for x 14
Composition/Decomposition Activity Section 11.2
Bellwork 2xo A male punky fish has 9 stripes, while a female punky fish has 8 stripes. If the number of stripes on all the punky fish in a tank totals 86, what is the ratio of male fish to female fish? Two triangles of equal area have congruent sides as shown. Determine the degree measure of x, the smaller of the two vertex angles. xo 14
Areas of Trapezoids, Rhombuses and Kites Section 11.2
The Concept • Yesterday we completed a worksheet that discussed the idea of composition and decomposition of objects in order to find area • Today we’re going to look at how we can use this to develop and area formulas for each of the three objects
Review of shapes Parallelogram h b Triangle h b
Trapezoids, Kites & Rhombuses, oh my! Let’s review these objects… • Trapezoid • Quadrilateral in which only two sides are parallel • Rhombus • Equilateral parallelogram • Kite • Quadrilateral with two pair of adjacent congruent sides
Trapezoid b1 h b2
Trapezoid Example Find the area of the object below 5 8 15
Trapezoid Example Find the area of the object below 10 12 12 22
Rhombus d2 d1
Rhombus example Find the area of the object below 15 24
Rhombus example Find the area of the object below 10 10 60o
Kite d2 d1
Kite Example Find the area of the object below 23.5 51
Kite Example Find the area of the object below 20
Homework 11.2 Exercises 10, 12, 15, 16-18, 24-29