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Perimeter and Area Review

Perimeter and Area Review. Review. How do you find the perimeter of a square?. P = 4s. P = 4 x 5 cm. P = 20 cm. 5 cm. Review. How do you find the perimeter of a rectangle?. P = 2L + 2W. or. P = 2(L + W). 3 cm. 6 cm. P = 2 x 6cm + 2 x 3cm. P = 2(6cm + 3cm). P = 2(9cm).

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Perimeter and Area Review

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  1. Perimeter and Area Review

  2. Review How do you find the perimeter of a square? P = 4s P = 4 x 5 cm P = 20 cm 5 cm

  3. Review How do you find the perimeter of a rectangle? P = 2L + 2W or P = 2(L + W) 3 cm 6 cm P = 2 x 6cm + 2 x 3cm P = 2(6cm + 3cm) P = 2(9cm) P = 12cm + 6cm P = 18 cm P = 18 cm

  4. Review How do you find the area of a square? A = s² A = 5 cm x 5 cm A = 25 cm² 5 cm

  5. Review How do you find the area of a rectangle? A = LW A = 8 cm4 cm 4 cm 8 cm A = 32 cm²

  6. Area of Parallelograms

  7. Area of Parallelograms The formula for finding the area of a rectangle is A = LW. The formula for finding the area of a parallelogram is A = bh. In the formulas for area of a rectangle and parallelogram: Length = base Width = height

  8. Area of Parallelograms How do you find the area of a parallelogram? 5 cm 8 cm Think change the parallelogram to a rectangle.

  9. Area of Parallelograms 5 cm 8 cm Change the parallelogram to a rectangle by making a triangle on one end and sliding it to the other end.

  10. Area of Parallelograms How do you find the area of a parallelogram? 5 cm 8 cm A = bh A = 8 cm 5 cm A = 40 cm²

  11. Area of Parallelograms How does the area of the rectangle compare to the area of the parallelogram? 5 cm 5 cm 8 cm 8 cm A = LW A = bh A = 8 cm5 cm A = 8 cm5 cm A = 40 cm² A = 40 cm²

  12. Area of Parallelograms How does the area of the rectangle compare to the area of the parallelogram? 5 cm 5 cm 8 cm 8 cm A = 40 cm² A = 40 cm² The two figures are equal in area.

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