In triangle vac ab = ac angle a = 5x+20 degree and B is 2/5th of angle a find measure of angle
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a+b+c=180
and according to the question angle b=angle
so
5x+20+2×2/5 (5x+20)=180
(5x+20)(1+2×2/5)=180
(5x+20 )(9/5)=180
x=80/5=16
a= 80
b and c = 50
and according to the question angle b=angle
so
5x+20+2×2/5 (5x+20)=180
(5x+20)(1+2×2/5)=180
(5x+20 )(9/5)=180
x=80/5=16
a= 80
b and c = 50
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