CBSE Class 9CBSE
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Solution for It is Required to Make a Closed Cylindrical Tank of Height 1 M and Base Diameter 140 Cm from a Metal Sheet. How Many Square Meters of the Sheet Are Required for the Same? - CBSE Class 9 - Mathematics

Login
Create free account


      Forgot password?

Question

It is required to make a closed cylindrical tank of height 1 m and base diameter 140 cm from a metal sheet. How many square meters of the sheet are required for the same?

Solution

Height of the cylindrical tank (h)=1m.
Base radius of cylindrical tank (r) = `140/2`m =70 cm 

=0.7m
Area of sheet required – total surface area of tank = 2π (r+h)
=2×3.14×0.7 (0.7 +1) `m^2`

= 4.4×1.7`m^2`
=`7.48m^2`
∴So, it will required  `7.48m^2` of metal sheet.

  Is there an error in this question or solution?

APPEARS IN

 R.D. Sharma Mathematics for Class 9 by R D Sharma (2018-19 Session) (with solutions)
Chapter 18: Surface Areas and Volume of a Cuboid and Cube
Q: 4
Solution for question: It is Required to Make a Closed Cylindrical Tank of Height 1 M and Base Diameter 140 Cm from a Metal Sheet. How Many Square Meters of the Sheet Are Required for the Same? concept: Surface Area of a Right Circular Cylinder. For the course CBSE
S
View in app×