MEDIUM
9th CBSE
IMPORTANT
Earn 100

What is the total surface area of a cone having radius r2 and height 2l ?

Important Questions on Surface Areas and Volumes

MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 19
If a right circular cone has radius 4 cm and slant height 5 cm, then what is the volume of the cone?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 20
A cone and a cylinder have the same height and same radius of the base. What is the ratio of the volumes of the cylinder and the cone?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 21
The radius of a hemisphere is r. What is its volume?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 22
What is the total surface area of a hemisphere of radius r?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 23
If the radius of a sphere is 2r, then what is its volume?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 24
If the radius of a sphere is doubled, then what is the ratio of the surface area of original sphere to the new sphere?
MEDIUM
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 25
If the radius of a sphere is doubled then what is the ratio of the volume of original sphere to the new sphere?
HARD
9th CBSE
IMPORTANT
Full Marks Mathematics 9>Chapter 13 - Surface Areas and Volumes>TEST YOUR SKILLS>Q 26
The dimensions of a rectangular metallic sheet are 48 cm×36 cm. From each corner, a square of side 8 cm is cut off and open box is made from the remaining sheet. Find the volume of the box.