Given ΔABCis equilateral and AD = 2 cm, find the perimeter of ΔABC.
4 cm
8 cm
16 cm
12 cm
18 cm
AD = 2 cm
Perimeter of the triangle = 6AD
= 12 cm
Find the perimeter of an equilateral triangle whose one side is 6 cm.
16 hemispheres of radius 2 cm are melted to make a single sphere. Find radius of the sphere.