Question

Are these two answers correct?

(angle sums triangles)

Answer 1

1. x = 22°
2. x = 83°

Explanation:

1.

The sum of all the interior angles of a triangle is equal to 180°. So, 90°+29°+(39°+x) = 180°.

2.

For the triangle on the right, the measure of 1 angle is not given. To find that out, make use of the angle in 112°: 180°-112° = 68°.

Then, we are able to find x by angle sum of triangles.

68°+29°+x = 180°.

Answer 2

the answer for the first is 22°

the answer for the second is 83°