Question

How many metres of canvas 1.25 m wide will be needed to make a conical tent whose base radius is 17.5 metre and height 6 metres

Answer 1

Answer:

Step-by-step explanation:

Height of cone(h) = 6 m

Radius of cone(r) = 17.5 m

Slant height of cone(l) = $\sqrt{\\ (17.5)^{2} + (6)^{2}$

                                     =18.5 m

Curved surface area of conical tent = $\pi rl$

                                                            =22/7*17.5*18.5

                                                            = 1017.5 sq. m

Let length of Canvas(L) = x m

Breadth of canvas(B) = 1.25 m

Area of canvas needed = curved surface area of conical tent

L*B = 1017.5

L = 1017.5/1.25

L= 814 m