Question

What is the angle if x

Answer 1

40

Explanation:

Supplementary angles equal 180.

If we take 180-110, we get 70. So the bottom two angles of the triangle are both 70

70 + 70 = 140. Now we just have to find that last angle

The three angles of a triangle also have to equal 180.

So we can subtract again

180-140 = 40

Answer 2

Answer: x = 40°

Explanation:

A straight line is equal to 180 degrees. We will use this to solve for the other two angles in this triangle.

180° - 110° = 70°

Next, we know there are 180 degrees in a triangle.

70° + 70° + x = 180°

140° + x = 180°

x = 40°