Question

a circus tent consists of cylindral base surrounded by a conial roof. Radius of the cylindral is 20m . Height is 63m .and that of the cone is 21m. Find the volume and area​

Answer 1

Answer:

Height of the tent = height of the cylinder + height of the cone.

Given, height of the cone (H) = 21 m height of cylindrical base(h) = 63 - 21 = 42 m Radius of the cylinder (r)= radius of the cone(r) = 20 m ∴ Volume of the circus tent = Volume of the cylinder + volume of the cone.                                        =πr2h +   πr2  Η =  πr2 (h+)

                                      = x 400(42 + 7)

                                      = 61600 m3  

Slant height of the cone =  = 29  

Now, area of the canvas in making the tent                  = curved surface area of the cylinder + Curved surface area of the cone                  = 2πrh + πrl

                 = πr(2h + l)

                 = x 20(84 + 29)

                 = 7102.85 m2.

Step-by-step explanation:

Answer 2

Answer:

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