Triangle ABC is an isosceles triangle AB=AC=10, angle BAC =30° find BC square
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Maths keeps one mentally active. In isosceles triangle ABC, AB = AC. If <BAC = 30 deg, then <ABC = <ACB = 90–15 = 75 deg. Area of ABC = 10*18.66025404/2 = 93.30127019 sq cm
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