What is the perimeter (in cm)of an equilateral triangle whose height is 3.46 cm? Take $\sqrt{3} = 1.73$
Answer & explanation
Correct answer: option 4
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