Question

Find the area of an equilateral triangle having each side of length 10 cm. [Take `sqrt(3) = 1.732`.]

Answer 1

Given:

Side a = 10 cm.

Use formula for area of an equilateral triangle: Area = `(sqrt(3)/4) a^2`.

Step-wise calculation:

1. Substitute values: Area = `(1.732/4) xx (10)^2`.

2. Compute (10)² = 100 and `100/4 = 25`.

3. So Area = 1.732 × 25 = 43.30.

Area = 43.30 cm² (≈ 43.3 cm²).