2 answers:
Answer:
ngle A=77
Angle B=103
Step-by-step explanation:
∠A+∠B=180 ( supplementary angles)
3/8 x +50+x+31=180
3/8 x+x=180-81
11/8 x=99
11x=99*8
x=(99*8)/11 =72
Angle A= 3/8 (72)+50
Angle A=27+50=77
Angle B= 72+31=103
Answer:
m<a = 77
m<b= 103
Step-by-step explanation:
m<a+m<b = 180(supplementary angles)
3x/8+50+x+31=180
3x/8+x+81=180
(3x+8x)/8=180-81
3x+8x=99*8
11x=792
x=792/11
x=72
now
m<a=3x/8+50
=(3*72)/8+50
=77
m<b=x+31
=72+31
=103
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