Practicing Success
The volume of a solid right circular cylinder is 5236 cm$^3$, and its height is 34 cm. What is its curved surface area (in cm$^2$)? (Take $\pi = \frac{22}{7}$) |
1650 1573 1804 1496 |
1496 |
We know that, Volume of cylinder = πr2h Curved surface area of cylinder = 2πrh We have, The volume of cylinder = 5236 cm3. Height of the cylinder = 34 cm According to the question, = πr2h = 5236 = \(\frac{22}{7}\) × r2 × 34 = 5236 = r2 = \(\frac{5236×7}{22×34}\) = r = \(\sqrt {49}\) = 7 cm Now, Curved surface area of cylinder = = 2 × \(\frac{22}{7}\) × 7 × 34 = 1496 cm2 |