What is the perimeter (in cm)of an equilateral triangle whose height is 3.46 cm? Take $\sqrt{3} = 1.73$

10.4 9 6 12

12

Height of equilateral triangle = 3.46cm Side of equilateral triangle = \(\frac{2}{\sqrt {3}}\)× height Side of an equilateral triangle = \(\frac{2}{\sqrt {3}}\)× 3.46 = 4 cm Perimeter of an equilateral triangle = 3 × 4 = 12 cm