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7.2A Notes

7.2A Notes. Area and Perimeter Problem Solving

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7.2A Notes

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  1. 7.2A Notes Area and Perimeter Problem Solving M.3.G.2Apply, using appropriate units, appropriate formulas (area, perimeter, surface area, volume) to solve application problems involving polygons, prisms, pyramids, cones, cylinders, spheres as well as composite figures, expressing solutions in both exact and approximate forms

  2. Area Formulas (Reminder) • Rectangle A = b h • Square A = s2

  3. Example • The perimeter of a rectangle is 26’ and the height is 8’. What is the area?

  4. Now You Try… • The perimeter of a rectangle is 38 cm and the height is 17 cm. What is the area?

  5. Comparing Shapes - Example • A rectangle and a square have equal areas. Given the dimensions of the rectangle, find the perimeter of the square. • Rectangle is 4’ by 64’

  6. Now You Try… • A rectangle and a square have equal areas. Given the dimensions of the rectangle, find the perimeter of the square. • Rectangle is 16” by 4”

  7. Comparing Shapes – Another Example • A rectangle and a square have equal areas. Given the base of the rectangle and one side of the square, find the perimeter of the rectangle. • Base of rectangle = 4” Side of square = 18”

  8. Now You Try… • A square and rectangle have equal areas. Given the base of the rectangle and one side of the square, find the perimeter of the rectangle. • Base of rectangle = 40’ Side of square = 20’

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