Question

If the measures of two angles of a triangle are 91 and 11°, what is the measure of the third angle?

HERR
The measure of the third angle isº. (Simplify your answer.)

Answer 1

If I understood your question in the right way, 78°

Step-by-step explanation:

Cuz, the sum of all 3 internal angles of a triangle is 180°.

180°=91°+11°+x

180°-(91°+11°)=x

78°=x