Question

the radius of 2 cylinder are in ratio 5:7 and heights are in ratio 3:5 the ratio of there csa is​

Answer 1

Answer:

.............................:)

Step-by-step explanation:

Answer 2

ANSWER

Step-by-step explanation:

Given :

• Ratio of radius of two cylinders = 5:7

• Ratio of the heights of cylinders = 3:5

To Find :

• The Ratio of CSA of cylinders

Solution :

Let the ratio constant be "X". Then the radius of the two cylinders becomes ,

• 5x and 7x

Let the ratio constant (in height's ratio) be "Y". Then the heights of two

cylinders becomes ,

.

3y and 5y

Curved surface area of cylinder is given by,

CSA(cylinder) = 27th

Where,

• ris radius of cylinder

• his height of cylinder

By the given data,

• Radius and height of first cylinder is 5x and 3y

• Radius and height of second cylinder is 7x and 5y.

First let us calculate the CSA of first cylinder,

: CSA(cylinders) = 27(5x)(3y) ........ (1)

The CSA of second cylinder is,

: CSA(cylinderz) = 2*(7x)(5y) ....... (2)

Now , Taking ratio ;

:= CSA(cylinders): CSA(cylinder 3) = 27(5x)(3): 29(7x)(5y)

: CSA cylinders): CSA(cylindera) = (5x)(3y): (7x)(5y)

: CSA(cylinder): CSA cylindera) = 15xy : 35xy

: CSA(cylinders) : CSA(cylinder z) = 15:35

CSA(cylinder): CSA(cylinders) = 3:7 *

Hence,

CLOSE

• The Ratio of CSA's of two given cylinders is 3:7.

HOPE IT'S HELP U.