What is the length of the hypotenuse of the triangle below

17

Step-by-step explanation:

Pythagorean Theorem

a^2 + b^2 = c^2

8^2 + 15^2 = c^2

64 + 225 = c^2

c^2 = 289, c = 17

8, 15, 17 is also a common Pythagorean triple.

56.6

step-by-step explanation:

the ratio of the perimeters is equal to the scale.

the ratio of the areas is equal to the square of the scale.

34 / 20 = k

a / 19.6 = k²

substituting:

a / 19.6 = (34 / 20)²

a = 19.6 (34 / 20)²

a ≈ 56.6

pi x^2

step-by-step explanation:

pi times x squared