Question

BEING TIMED! HELP ASAP!!

What is the measure of angle A in this triangle?

Enter your answer in the box.

​ m∠A= ​
°

Answer 1

I am to believe the answer is 50 degrees

Answer 2

Answer: hope this helps ♡

m∠A= = 50°

Explanation:

Triangle = 180°

A + B + C = 180°

(2x-10)° + (x+30)° + 70° = 180°

2x° + x° + 30° - 10° + 70°= 180°

3x° + 90° = 180°

3x° + 90° - 90 = 180° - 90

3x = 90°

3x ÷ 3 = 90° ÷ 3

x = 30°

m∠A= (2×30-10)° = (60-10)° = 50°