Question

The curved surface of a cylinder is 4400 cm square ,circumference 110 cmfind height and volume

Answer 1

CSA of cylinder = 4400 cm

Circumference of base = 110 cm

$Circumference = 2\pi r = 110 \\ r = \frac{110 \times 7}{22 \times 2} = \frac{770}{44} = 17.5$

Now,

$CSA \: of \: cylinder = \pi {r}^{2} h = 4400 \\ h = \frac{4400 \times 7}{22} \times \frac{10000}{175 \times 175} \\ \\ h = \frac{308000000}{673750} = 457.14$

Answer 2

the answer is 40 cm

I hope this will help you