Practicing Success
A square has the perimeter equal to the circumference of a circle having radius 7 cm. What is the ratio of the area of the circle to area of the square? (Use π = $\frac{22}{7}$) |
121 : 44 7 : 2 14 : 11 7 : 11 |
14 : 11 |
Here, Perimeter of square = Perimeter of circle 4s = 2πr 4s = 2 × \(\frac{22}{7}\) × 7 4s = 44 s = 11 cm Area of circle = \(\frac{22}{7}\) × 7 × 7 = 154 cm2 Area of square = (11)2 = 121 Now, The ratio of the area of the circle to area of the square = 154 : 121 = 14 : 11 |