Question

how many square metres of Canvas is required for a conical tent whose height is 3.5 metre and the radius of whose base is 12 metre ​

Answer 1

Answer:

Step-by-step explanation:

Given radius of the base of the cone= 12m

Height of the cone = 3.5m

:Slant height of the cone= square root of (r2 + h2)= (12)2 + (3.5)2 = square root of (144+12.25)= square root of (156.25) = 12.5m

: Curved Surface area of cone= 22/7 * 12 * 12.5

471.42m2

:Area of canvas required= Curved Surface Area of cone

: 471.42 m2 of canvas is required for the conical tent