xcalibrr xcalibrr

06-05-2022
Mathematics

contestada

pls help and explain maybe

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

pls help and explain maybe a 17x b12x8 c8x3 class=

Respuesta :

mhanifa mhanifa

08-05-2022

Answer:

x = 5; 85°; 52°; 43°

Step-by-step 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°

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