If r=10 and s=31 find r. round to the nearest tenth

option c.

Step-by-step explanation:

You need to remember the identity:

The inverse of the tangent function is arctangent. You need to use this to calculate the angle "R":

You know that you need to find the measure of "R" and (which is the opposite side) and (which is the adjacent side), you can sustitute values into

Then, you get:

The correct answer option is C. 17.9°.

Step-by-step explanation:

We are given a right angled triangle, SRT, with two known sides, r and s.

We are to find the measure of the angle R.

For that, we will use tan.

R = 17.9°

b

step-by-step explanation: