247,710 views
20 votes
20 votes
Please help I don’t understand how to do this

Please help I don’t understand how to do this-example-1
User Alan Wells
by
3.0k points

2 Answers

19 votes
19 votes

Answer:

m∠C=65°

Explanation:

m∠B=90°

m∠A=25°

m∠A+m∠B+m∠C=180°

25°+90°+m∠C=180°

m∠C=180°-(90°+25°)

m∠C=65°

Hope it helps! :)

User Hooman Askari
by
2.4k points
17 votes
17 votes

Answer:

65 degrees

Explanation:

All angles of a triangle have to add up to 180 degrees. After establishing that, we can see that there are two angles given. 25 degrees and a 90-degree symbol. So if two angles add up to 115 degrees, we can do 180-115=65 to find the angle of C.