Given cos b = 11/18 find angle b in degrees. round your answer to the nearest hundredth.

Step-by-step explanation:

We have been given that . We are asked to find the measure of angle B.

We will use inverse cosine or arccos to solve for the measure of angle B as:

Upon rounding our answer to nearest hundredth, we will get:

Therefore, the measure of angle B is 52.33 degrees.

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.