What is the length of the unknown leg in the right triangle 3 ft 9 ft

a = 3 ft

Explanation:

The relation between the legs and the hypotenuse of a right-angled triangle can be expressed using the Pythagorean theorem as follows:

In the given triangle, we have:

leg1 = 8 ft and hypotenuse = ft

Substitute with the givens in the above equation to get the length of the second leg as follows:

()² = (8)² + (second leg)²

73 = 64 + (second leg)²

(second leg)² = 9

either second leg =

or second leg = as length cannot be negative

Hope this helps :)

it's a right triangle so you use Pythagoras' theorem.

√(√73)²- 8² =

√73 - 64 =

√9 =

3 ft

c is the correct answer

step-by-step explanation:

d. corresponding side lengths in similar triangles are proportional in length.

step-by-step explanation: