Practicing Success
Find the area of the circle whose circumference is 22 cm. |
38.5 cm2 42 cm2 30 cm2 77 cm2 |
38.5 cm2 |
Let radius be r Given circumference = 2\(\Pi \)r = 22 = r = 22/2\(\Pi \) = \(\frac{7}{2}\) Area can be give as \(\Pi \)\( { r}^{2 } \) = Area = \(\Pi \)\( { 3.5}^{2 } \) = 38.5\( {cm}^{2 } \) Therefore, the area of circle is 38.5\( {cm}^{2 } \). |