225 cm squared
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Area = pi*7.52 = 176.715 square cm rounded to 3 dp
15*15 = 225 square centimetres.
The area of a square is given as the square of a side. So simply take the square root of the area for a side.
1 side of square = 2cm area of square = side x side so, area= 2x2 = 4 cm^2
Well, darling, to find the area of a triangle with those side lengths, you can use Heron's formula. So, plug in those side lengths (a=8, b=11, c=15) into the formula, calculate the semi-perimeter, and then solve for the area. Voilà, you've got yourself the triangle's area.