If perimeter of an equilateral triangle is 180cm , what will be its area ?
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perimeter of equilateral triangle=3a
➡180=3a
➡a=60cm
area of equilateral triangle=√3/4a^2
➡√3÷4 ×60×60
➡√3×15×60
➡900√3cm^2=area of equilateral triangle.
hope this helps
➡180=3a
➡a=60cm
area of equilateral triangle=√3/4a^2
➡√3÷4 ×60×60
➡√3×15×60
➡900√3cm^2=area of equilateral triangle.
hope this helps
ronitchopra:
Sorry I didn't understand anything
This question is of 1 mark
This question is of 9th class
you just remember the area of equilateral triangle qnd u can solve it within 2 min of time if u know the formula
This formula is not in 9th class
so what bro i learnt the area of equilateral triangle in my 7th class
u can see aditiya's answer just below my answer his answer is quite simple
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hope thi helps you plz follow I am this all because their is an condition that my answer should be 20 characters long....
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