Question

Pls help and explain maybe

a: 17x
b:12x-8
c:8x+3

Answer 1

• x = 5; 85°; 52°; 43°

Explanation:

Sum of interior angles of a triangle is 180

• m∠A + m∠B + m∠C = 180°

• 17x + 12x - 8 + 8x + 3 = 180
• 37x - 5 = 180
• 37x = 185
• x = 185/37
• x = 5

Find each angle measure

• m∠A = 17*5 = 85°
• m∠B = 12*5 - 8 = 52°
• m∠C = 8*5 + 3 = 43°