please help me ,
freinds
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Step-by-step explanation:
A+B+C = 180 degrees
AB=AC .
angle C= 70 degrees B = (3x+10
let A = x
x+ 70 +(3x+10) =180
4x + 80 = 180
4x = 180 - 80
4x = 100
Answered by
2
Answer:
4x=100
Step-by-step explanation:
A+B+C=180degrees
AB=AC
Angle C=70degrees B =(3x+10)
let A =x
x+70+(3x+10)=180
4x+80=180
4x=180-80
4x=100
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