Question

On a piece of paper, use a protractor to construct a triangle with angle measures of 40° and 60º.

What is the measure of the third angle?


60°

80°

100°

180°

Answer 1

80 degrees

Explanation:

Because a triangle had a 3 sides which would add up to 180 degrees.
So in this case:

40+60=100

180-100=80

Answer 2

There are 180 degrees in a triangle so it is 80 degrees