A wire was shaped to form a square of area 81cm\(^2\). An equilateral triangle was formed by the same wire,What is the length of a side of the triangle formed?
a
3cm
b
6cm
c
9cm
d
12cm
e
27cm
Explanation
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jakjohnny
9 years ago
The selected answer is wrong:
The area of a square = l2
L^2 = 81cm^2
L = 9cm
Means that all the sides of the square are 9cm
Perimeter of square = 4l = 4 * 9 = 36cm
Means that the whole length is 36cm
So length of a side of the triangle would be 36/3 = 12cm
