find giving reason angles b=2a-15 if a=80 B=100
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Step-by-step explanation:
A triangle with the two equal side is an isoceles triangle.
In isoceles triangle two angles are equal
As give Angle A is 80°
And as we know A+B+C=180→ B+C=180–80
As angle B and C are equal
2B=100→ Angle B =50° ans.
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