Question

the perimeter of an equilateral triangle is 60cm.then its area is​

Answer 1

Answer:

180 c m

Step-by-step explanation:

area of an equilateral triangle=3x

=3*60

=180cm

Answer 2

Answer:

17.32cm

Step-by-step explanation:

given a equilateral triangle

w.k.t. equilateral triangle has same length in all its side

since perimeter is 60 cm , side is 60/3 i.e. 20

area of eq.tri. is $\sqrt{3}/4$ × $a^{2}$    ∴$\sqrt{3}/4$ × $20^{2}$ = 17.32cm