If the angles A, B and C of ΔABC satisfy the relation B - A = C - B, then find the measure of angleB.
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Step-by-step explanation:
Given to you,
Relation is B-A=C-B
THEREFORE,. 2B=A+C ----- equation 1
Hence the angles are in AP
Now sum of AP is 180 as the sum of all sides of a triangle is 180
Therefore
A+B+C=180
A+C =180-B
From equation 1 putting A+C =2B
2B= 180-B
3B =180
B=60
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