Question

1. The side of an equilateral triangle is 12 cm. Find its area.
(1) 48 3 cm (2) 36 3 cm? (3) 24 13 cm (4) 36 cm²
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Answer 1

Answer:

Area of equilateral triangle A =√3/4a²

A=√3/4×(12)²

A=√3/4×144

A=√3×36

A=1.73×36

A=62.28cm²