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Area Formulas and Calculations: Square, Rectangle, Triangle, Circle, Parallelogram, Trapezium, Kite, and Cuboid

Learn about the formulas and calculations for finding the areas of various shapes, including squares, rectangles, triangles, circles, parallelograms, trapeziums, kites, and cuboids. Explore examples and complete tables to practice your understanding.

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Area Formulas and Calculations: Square, Rectangle, Triangle, Circle, Parallelogram, Trapezium, Kite, and Cuboid

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  1. Unit 13Areas

  2. Unit 13Areas Formula for Area

  3. Square Side: a Area = a x a = a2

  4. Rectangle Sides: a, b Area = a x b = ab

  5. Triangle Base: b Perpendicular height: h Area =

  6. ? ? 3 cm ? ? 5 cm 12 cm ? ? ? ? 6 cm Complete the table

  7. ? ? ? ? ? ? ? ? ? Complete the table

  8. Unit 13Areas You have finished viewing: Formula for Area

  9. Unit 13Areas Areas and Circumferences of Circles

  10. Circle Radius: r Diameter: d Circumference: or Area: or

  11. Example Find the circumference and the area of the circle with radius 4 cm Circumference Area ? ? ? ? ?

  12. Unit 13Areas You have finished viewing: Areas and Circumferences of Circles

  13. Unit 13Areas Formulae for Areas of Parallelograms, Trapeziums and Kites

  14. Parallelogram Area = b x h = bh

  15. Trapezium Area =

  16. Kite Area =

  17. ? ? ? ? ? ? ? Complete the table

  18. Unit 13Areas You have finished viewing: Formula for Areas of Trapeziums, Parallelograms and Kites

  19. Unit 13Areas Surface Area

  20. unfolds to give z y x The surface area is: Find the surface area of the cuboid with sides 4 cm, 5 cm and 6 cm. When x = 4, y = 5, z = 6 ? ? ? ? ?

  21. r unfolds to give h ? ? Area of the circles Area of the rectangle Total surface area ? ? ? ? ? ? ?

  22. Area of the circles Area of the rectangle Total surface area Find the surface area of a can of height 10 cm and radius 3 cm When r = 3 cm, h = 10 cm ? ? ? ? ? ? ?

  23. Unit 13Areas You have finished viewing: Surface Area

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