Question

A conical tent is 7m high and the radius of its base is 24m.
What is the cost of canvas required to make it, if a square metre canvas costs Rs. 20
a) Rs. 56521.30
b) Rs. 1456.20
c) Rs. 35625.48
d) None of these

Answer 1

Answer:

1456.20

Step-by-step explanation:

follow me and put the formula

Answer 2

The cost of canvas required to make the tent is (D)None of these.

• The height of the conical tent is 7m and the radius of its base is 24m.
• Now that we have to find the canvas required to make the tent, will be equal to the total surface area of the conical tent.
• Curved surface area of the conical tent = πrl
• We have to find the slant height of the cone.
• Formula to find the slant height of the cone is $\sqrt{r^2+h^2}$.
• slant height(l) = 25 m
• Now the total surface area of the cone = πrl = π(24)(25) ≈ 1884.9 sq. cm
• Now the rate of canvas is Rs. 20 per sq. m
• Therefore total cost of canvas required = Rs. 20 × 1884.9 ≈ 37698 Rs.