Question

The area of an equilateral triangle is
173.2 cm². Perimeter of the triangle
could be:
(A) 68 cm
(B) 54 cm
(C) 60 cm
(D) 72 cm
(E) None of these​

Answer 1

Answer:

answer is 60cm

Step-by-step explanation:

Area of equilateral triangle=v3/4*a^2

=)173.2=v3/4*a^2

=)a^2=173.2*4/13

=)a^2=692.8/1.732. (putting the value

of v3)

=)a^2=400

=)a=20m

so, perimeter of equilateral triangle-D3*side

=3*20=60m

Hope it helps you