Question

if the length of the side of an equilateral triangle is 6cm then its perimeter is.......cm​

Answer 1

Answer:

18 cm

Step-by-step explanation:

Perimeter is the length of all the sides.

An equilateral triangle has all sides of equal and there are 3 sides.

Side of triangle = 6 cm

Perimeter = 6 + 6 + 6 = 18 cm

Answer 2

Answer:

9√3

Step-by-step explanation:

Area of a equilateral triangle=√3/4×a²

=√3/4×6²

=√3/4×36

=9√3

hope it helps