Question

If the perimeter of an equilateral triangle is 30 cm ,then the area is​

Answer 1

if the perimeter of an equilateral triangle is 30 cm.Then its side will be 10 cm as in an equilateral triangle all sides are equal.

now if side is 10 cm then it's area would be =a^2 √3/4. hence the area would be 43.30

Answer 2

Step-by-step explanation:

perimeter of equilateral triangle is 30 then

1. a+b+c =30
2. All sides are equal then
3. a=b=c
4. 3a=30 a = 10

area of triangle if √3/4 a ^2

√3/4 × 10 ×10

√3/2×50

25√3

43.30

this is the verified answer

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