Question

PLEASE HELP ASAP!!!!!!!!

The length of one leg of a right triangle is 21 ft and the length of the hypotenuse is 29 ft. What is the length of the other leg? 35.8 feet 20.0 feet 50.0 feet 25.0 feet

Answer 1

A^2 + B^2 = C^2
21^2 + B^2 = 29^2
441 + B^2 = 841
-441 -441
B^2 = 400
√B^2 = √400
B = 20

Answer 2

29^2 - 21^2 = sqr(400) = 20.0