Question

What is the area of a cylinder that has a diameter of .24m?
(was only given the diameter)

Answer 1

Answer:A=2πd

2h+2π(d

2)2

d Diameter  

0.24

m

h Height  

Answer 2

Answer:

ANSWER

Area of canvas required for the tent = Curved surface area of the cylindrical portion + Curved surface area of the cone

=(π)rl+2(π)rh

For cylinder:

Radius (r) of the cylinder =12 m

Height(h) of the cylinder =11m

Curved surface area of cylinder =2πrh=2(π)×12×11=264(π)

For cone:

Height (h) of the cone = Height of the vertex from ground − Height of the cylinder

=16−11=5 m

Radius (r) of the cone =12m

Slant height of the cone =lm

l

2

=r

2

+h

2

l=

r

2

+h

2

l=

5

2

+12

2

=13m

Curved Surface area of cone =πrl=π(12)(13)=(156π)m

2

Hence, area of canvas =(264π+156π)m

2

=(420π)m

2

=420×

7

22

=1320m

2

.

Answered By

Explanation:

The diameter of the cylinder is given as 24 m. Hence its radius, r = 12 m. The height of the cylinder, h = 11 m. The curved surface area of a cylinder with radius 'r' and height 'h' is given by the formula

have a nice day sir