Question

ii) Find the total surface area of the right circular cylinder whose volume and height
are 490 cm³ and 10 cm respectively. Ans: 748 cm²


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Answer 1

Answer:

Answer:curved surface area= 440cm^2 total surface area=748 cm^2 volume = 1540 cm^3Step-by-step explanation:h ...

Answer 2

Answer:

Total surface area of the right circular cylinder is 345 cm².

Step-by-step explanation:

The formula to find the volume of cylinder is:

=> Volume of cylinder = πr²h

Where, Volume = 490 cm³ and Height(h) = 10 cm

By applying the formula, let's find the radius of the cylinder.

=> πr²h = Volume

=> (22 × r² × 10) / 7 = 490

=> 220 × r² = 490 × 7

=> 220 × r² = 3430

=> r² = 3430 / 220

=> r² = 15.59

=> r = 3.94 cm

To find the total surface area of cylinder, we use the formula:

=> TSA = 2πr(h + r)

By applying the formula, we get:

=> TSA = [2 × 22 × 3.94 (10 + 3.94)] / 7

=> TSA = (173.36 × 13.94) / 7

=> TSA = 2416.63 / 7

=> TSA $\approx$ 345 cm²

Hence, the total surface area of the cylinder is approximately equal to 345 cm².