Question

the perimeter of an equilateral triangle is 90m then it's area
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Answer 1

Answer:

all sides of equilateral triangle is same

therefore 3x = 90

x = 30m

therefore area = √3/2. × side ^2

= √3/4× 30 × 30

= 225√3 m^2

plz mark as brainst

Answer 2

Here it is given that the perimeter of an equilateral triangle is 90 m

First, we will find the side of the equilateral triangle

perimeter of equilateral triangle = 3 × side

90 = 3 × side

side = 90 / 3

side = 30 m

Now, we will find the area of equilateral triangle

Area of equilateral triangle = (√3 / 4 ) × side²

= (√3 / 4 ) × 30²

= 389.25 m²

Hence, the area of the equilateral triangle will be 389.25 m²