2pi*r=132 --> r=66/pi Sc=pi*r^2= 66^2/pi 4a=132 --> a=33 Ss=a^2= 33^2 Sc-Ss=33^2*4/pi-33^2=33^2(4/pi-1)= 297.6
Suppose ABCD is a square and E is the midpoint of AD. Construct a circle through the points E, B, and C. Which shape has a larger perimeter: the square or the circle?
A triangle, a square, a pentagon, a hexagon, an octagon and a circle all have an equal perimeter, which one has the smallest area?
The given figure shows a triangle and a circle enclosed in a square. Find the area of the shaded parts?
The given figure shows a circle, centred at O, enclosed in a square. Find the total area of shaded parts?
