srosec123
srosec123 srosec123
  • 09-06-2020
  • Mathematics
contestada

What is the answer to the math peoblem

What is the answer to the math peoblem class=

Respuesta :

surjithayer10 surjithayer10
  • 09-06-2020

Answer:

Step-by-step explanation:

∠ 6=∠ 7

11 x+8=12 x-4

12 x-11 x=8+4

x=12

m∠6=11x+8=11×12+8=132+8=140°

m∠ 4+m∠ 6=180°

m∠4+140=180

m∠4=180-140=40°

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