Zhiqiang Zheng's answer to Ifa elys's Primary 6 Maths Measurement Singapore question.
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Equilateral Triangle means all sides of the triangle are equal, hence all 3 angles of the triangle are equal.
Hence, angle ABC = angle BAC= angle ACB=180÷3=60
angle BCD=180-43-60=77
Hence, angle ABC = angle BAC= angle ACB=180÷3=60
angle BCD=180-43-60=77
Date Posted:
4 years ago
Thank uou but you were a little late
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