Question

Find the length of the altitude to the hypotenuse. round the answer to the nearest tenth, if needed

A. 82.8
B. 86.9
C. 91.2
D. 93.6

Answer 1

I just took the test the answer is 86.9

Answer 2

see the figure attached to better understand the problem

we now that

in the triangle ABC
tan alfa=126/120----------> 1.05
alfa=arctan (1.05)-------> alfa=46.40°

in the triangle ADC

sin alfa=DC/120----------> DC=sin(46.40°)*120---------> DC=86.90 units

the answer is 86.9 units