Mensuration

The curved surface area of a a right circular cone of height 15 cm and base diameter 16 cm is

• 60π

• 68π

• 120π

• 136π

The height of a right circular cone whose radius is 5 cm and slant height is 13 cm will be

• 12cm

• 10cm

• 13cm

• 5cm

If the radius of the base of a right circular cylinder is halved keeping the same height then the ratio of the volume of the cylinder thus obtained to the volume of original cylinder is

• 1:2

• 1:4

• 1:6

• 1;8

If the radius of the base of a cone is tripled and the height is doubled then the volume is

• Made 6 times

• Maid 18 times

• Maid 12 times

• Unchanged

Total surface area of a hemisphere is how much times the square of its radius

• π

• 4π

• 3π

• 2π

Shuttlecock used for playing badminton has the shape of the combination of

• A cylinder and sphere

• Hemisphere and cone

• Sphere and cone

• Frustum of a cone and hemisphere

The ratio of the volumes of a cylinder cone and sphere if each has the same diameter and same height is

• 1:2:3

• 2:1:3

• 1:3:2

• 3:1:2

If the base of the triangle is doubled and height is halved, its area will be _____

• Doubled
• Halved
• one-fourth
• Same

Tags

CCSS.K.MD.A.1

The volume of a cone is ____________ of that of a cylinder

• three times

• equal

• half

• one third

The area of a rhombus whose diagonals are 9 cm and 7 cm is ______

• 16 cm²
• 63 cm²
• 63 cm²
• 16 cm²