Question

Two corresponding sides of two similar pentagons are 12 cm and 28 cm. What is the ratio of the areas of the pentagons?

Answer 1

Area is proportional to square of the sides.

so just take the square of the ratios of sides to get the ratio of areas

Answer 2

\((12/28)^2 =...\)

Answer 3

Pentagon area = 1.720477401 * side²
The pentagon area is proportional to the side squared:

28² = 784
12² = 144

784 / 144 = 5.44

So the larger pentagon has 5.44 times the area of the smaller pentagon.

Answer 4

9/49 would be the ratio ?

Answer 5

thats correct :)