Question

The square below contains a shaded quarter

circle.
What percentage of the square is shaded?
Give your answer to 2 d.p.

Answer 1

Answer:Percentage=π/4(78.54%)

Explanation:

Let the side of the square is r.

So, areaof the square s1==r^

Area of a shaded quarter circle:s2=1/4(πr^2)

Percentage pf the square is shaded is the ratio of the areas of the figures

Mean:s2/s1=(1/4πr^2)/r^2

 =π/4(approx.78.54%)