Question

If the height of an equilateral triangle is 3 cm. Then find the area of the triangle​

Answer 1

Given , in the equilateral triangle

length of equilateral triangle (l) = 3cm

=> Area of triangle = (3)½(3)² ÷4

= 9(3)½ / 4 cm²

$area \: of \: equilateral \: triangle \: \: \: \: = \sqrt{3} a {}^{2} \div 4$