Question

Please answer what is the perimeter of figure b

Answer 1

31.2

Explanation:

Perimeter of Shape A: 20

Shown side of Shape A: 2

20 ÷ 2 = 10

So.....

3.12 x 10 = 31.2

Perimeter of shape B: 31.2

Answer 2

31.2 units

Explanation:

The ratio of perimeters is the same as the ratio of side lengths between the similar figures.

P/20 = 3.12/2.0

P = 20(3.12/2.0) = 3.12(20/2.0) = 3.12(10)

P = 31.2

The perimeter of Figure B is 31.2 units.