Question

What is the measure of Angle HEG?

Answer 1

angle HEG = 12 degrees

Explanation:

A line is 180 degrees. Since there is a right angle there, you know that angleHEG and 78 added together is 90degrees

x + 78 = 90 >> subtract 78 from both sides

x = 12

angle HEG = 12 degrees

Answer 2

18 degrees

Explanation:

There is a little box on the left that indicates both angles together make a 90 degree angle so you just have to do 90 - 78 to get the answer.