Question

Help pls help pls help

Answer 1

18.6

Explanation:

We know a side and a angle opposite of that side

(AC and Angle B respectively).

We know another side(AB). and are trying to find a angle opposite of it.

Let use Law of Sines rules.

`(ac)/( \sin(angle \: b)) = (ab)/( \sin(angle \: c))`

Substitute the values in.

`(22)/( \sin(90) ) = (7)/( \sin(x) )`

Solve for sin x by taking the reciprocal of both sides.

`( \sin(90) )/(22) = ( \sin(x) )/(7)`

Remeber sin 90 =1 and multiply 7 by both sides.

`(1)/(22) * 7 = \sin(x)`

Take the inverse of sin to find the angle measure.

`\sin {}^( - 1) (x) = (7)/(22)`

The answer is

18.6