triangleABC is an isosceles triangle with AB = AC. If angleB = 40°, what are the measures of angleA and angleC
Class 7
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Step-by-step explanation:
angle B = angle C = 40° [ angles opposite to equal sides are equal ]
A + B + C = 180° [ angle sum property ]
A + 40° + 40° = 180°
A = 180° - (40° + 40° )
A = 180° - 80° => 100°
therefore angle A = 100° and angle C = 40°
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Step-by-step explanation:
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