The perimeter of a square is the same as the circumference of a circle whose area is 61.6 cm^2. Find the area of the square.
1 answer:
Answer:
Step-by-step explanation:
first, 4l=2 x π x radius............................ eqn 1
next, find the value for the radius, r using
Area of a circle=πx radius squared
61.6=3.142 x r x r
61.6÷3.142=r x r
r x r= 19.6
r=4.43
then substitute the value of r in eqn 1
4l=2 x 3.142 x 4.43
4L=27.83812
L= 27.83812÷4
L≈6.96
area of a square = L x L
=6.96 x 6.96= 48.43
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