Question

Triangle ABC has the following angle measures:

m∠A = (2x − 24)°, m∠B = (x + 8)°, m∠C = (4x + 49)°

What is m∠A?

18°
21°
29°
133°

Answer 1

Pretty sure it’s 18°

Answer 2

Since sum of angles in triangle add up to 180°,

(2x-24)+(x+8)+(4x+49)=180°

7x+33=180

7x=147

x=21

Subt in x=21 into angle A: 2x-24

2(21)-24=18

Angle A is 18°