Respuesta :

Answer:

? = 72.9

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = opp / hyp

cos ? = 15/51

Taking the inverse cos

cos ^-1 ( cos ?) = cos^-1 ( 15/51)

? =72.89536

To the nearest tenth

? = 72.9

the answer is ?=72.9