Question

Calculate the area of an equilateral triangle whose height is 20cm​

Answer 1

Answer:

Height (side) = 20cm

Area = √3/4 × (a)²

Area = √3/4×(20)² = √3/4 × 400

Area = √3×100 = √300 = √3×5×2×5×2

Area = 10√3 = 173.21

Step-by-step explanation:

173.21 is the correct answer

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