What is perimeter of an equilateral triangle of side 7m?
Calculating perimeter of equilateral triangle :
Perimeter of equilateral triangle =3×side
=3×7=21m
Hence perimeter of equilateral triangle is 21m
Find the side of equilateral triangle whose perimeter is 0.639m.
The perimeter of an equilateral triangle, if the side of the triangle is m. Give the corresponding expression.