Question

11. A cylindrical card board carton closed at both ends is 20 cm high and has radius 14 cm. What area of card board is necessary to make it, assuming that there is no overlapping while joining the ends? [Hint : Find the total surface area of the cylinder]


pls answers anyone with exaplanation​

Answer 1

Answer:

CSA of cylinder=2πrh=2×

7

22

×3.5cm×30cm=660cm

2

∴ CSA of the cylinder =660cm

Step-by-step explanation:

good afternoon dear