Question

Find the surface area of a cylinder whose.
1) radius of the base is 4 m and height 5.6 m.
2) perimeter of the base 85 m and height 12 m.​

Answer 1

TSA of cylinder is 2π(r+h)

radius is = 4m

height=5.6m

2×22\7(4+5.6)

44(9.6)

422.4

Answer 2

a) S = 241.152 square meter

b) S = 8245 square meter

Step-by-step explanation:

Surface area of cylinder =

$S = 2\pi r(r+h)$

where r is the radius and h is the height of the cylinder.

1) radius of the base is 4 m and height 5.6 m.

Putting values, we get,

$S = 2\pi 4(4+5.6)\\S = 2(3.14)(4)(9.6)\\S = 241.152\text{ square meter}$

2) perimeter of the base 85 m and height 12 m.​

Perimeter of base

$P= 2\pi r = 85$

Putting values, we get,

$S = 85(85+12)\\S = 85(97)\\S = 8245\text{ square meter}$

#LearnMore

Find the volume, curved surface area and total surface area of each of the cylinders

whose dimensions are:

(1) radius of the base - 7 cm and height 50 cm

(2) radius of the base -5.6 m and height = 1.25 m

https://brainly.in/question/15209840​