Two angle measures in a triangle are 67° and 26°. What is the measure of the third angle? 93° 87° 267° 90°
Mathematics · College · Tue Nov 03 2020
Answered on
We know that the sum of the angles in any triangle is always 180°. Lets call X the third angle that we don't know and lets create a simple equation from it.
x+67+26=180
Lets put the variables on one side and the numbers on the other side. Every variable or number that will change signs, will have their sign changed from a + into a - and vice versa.
x=180-67-26
x=87°