Question

Calculate the angle of the incline from the diagram. Answers have been rounded to the nearest tenth of a degree.

A. 32.2°
B. 40.2°
C. 49.8°
D. 57.8°

Answer 1

Let's see

`\\ \rm\rightarrowtail tan\theta=(Perpendicular)/(Base)`

`\\ \rm\rightarrowtail tan\theta=(11)/(13)`

`\\ \rm\rightarrowtail tan\theta=0.846`

`\\ \rm\rightarrowtail \theta=tan^(-1)(0.846)`

`\\ \rm\rightarrowtail \theta=40.2^(\circ)`

Answer 2

40.2

Explanation: