Question

the perimeter of an equilateral triangle is 90m . then find it area​

Answer 1

Answer:

area. =900×√34=225√3sq.cm.

Step-by-step explanation:

Given that, perimeter = 90 cm

=> 3a = 90 cm

Therefore, 90/3=30cm

Therefore, Area =√3/4×(a×a) =√3/4×(30×30)

=900×√3/4=225√3sq.cm

Answer 2

Answer:

Perimeter = 90 m

So, length of each side = ⁹⁰/3 m

= 30 m

Now, area = ½ x b x h

= ½ x 30 x 30 m

= ½ x 90 m

= 30m²

And here's yr answer...

Hope it helps u...