Question

The measures of the angles of a triangle are shown below. Find the value of x.

79°, 70°, x°

Answer 1

The third angle is 31°

Explanation

Step one:

Given first and second angles to be

79° and 70° we need to find x

Step two : the sum of angles in a triangle is 180°

X°+79°+70°=180°

X= 180-70-79

X is 31°

Answer 2

The sum of the three inside angles of a triangle need to equal 180 degrees.

X = 180 - 79 - 70

x = 31 degrees.