Question

plaese tell..........



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Answer 1

Answer:

CSA of acone is pi×r×l.

l= sq.root of h sq + r sq=25

so after substituting the values we get 550 as the answer

Answer 2

Answer:

rs 1155

Step-by-step explanation:

Height = 24m

Diameter = 14m

Radius = 7m

Slant height =$\sqrt{h^{2} }+r^{2}$ (whole thing is a square root)

                    = (24)² + (7)²

                    = 25m

Curved surface area

⇒πrl

⇒22/7*7*25

⇒22*25

⇒550m²

Cost

⇒For 100m² = rs 210

⇒For 1m² = 210/100

Cost for 550m²

⇒550*210/100

⇒55*21

⇒ rs 1155

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Hope it helps. Please mark as brainliest :)