Math, asked by narasimhap1968, 4 months ago

find the csa and tsa of a cylinder whole radius of the base 21cm and height is 11cm​

Answers

Answered by niraj1222002
0

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Answered by Anonymous
0
AnSwer -:


CSA or Curved Surface Area of

cylinder-: 1452 sq. cm



Total Surface Area or TSA of

cylinder-: 4224 sq. cm

_______________________________

Explanation-:

Curved Surface Area (CSA) of cylinder-:

“CSA = 2 π r h”

Total Surface Area (TSA) of cylinder-:

“TSA = 2πr (h + r)”

CSA = Curved Surface Area

π = 22/7 or 3.14

R = radius

H = height

TSA = Total Surface Area

_______________________________

Given,

The radius of cylinder-: 21 cm

The height of cylinder-: 11 cm

To find ,

CSA and TSA of cylinder

_______________________________

Now ,

Curved Surface Area (CSA) of cylinder-:

“CSA = 2 π r h”

CSA = Curved Surface Area

π = 22/7 or 3.14

R = radius = 21 cm

H = height = 11 cm

Then ,

2 π x 21 x 11

2 x 22/7 x 231

2 x 22 x 33

44 x 33

= 1452 sq . cm

Then ,

CSA or Curved Surface Area of

cylinder-: 1452 sq. cm

Total Surface Area (TSA) of cylinder-:

“TSA = 2πr (h + r)”


π = 22/7 or 3.14

R = radius = 21 cm

H = height = 11 cm

TSA = Total Surface Area = ??

Now ,

2 π x 21(11 + 21)

2 x 22/7 x 21 (11+21)

2 x 22 x 3 (11+21)

44 x 3 (11 + 21)

44 x 3 x 32

132 x 32

= 4224 sq. cm

Then ,

Total Surface Area or TSA of

cylinder-: 4224 sq. cm

Hence ,


CSA or Curved Surface Area of

cylinder-: 1452 sq. cm



Total Surface Area or TSA of

cylinder-: 4224 sq. cm

_______________________________

Cylinder-: Cylinder is a shape , in

geometry, which has two parallel

circular bases at a distance.

______________________________



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