The surface area of sphere is

Non-right pyramids are called

A. Oblique Pyramids

B. Tetrahedron based pyramids

C. Pentagon based pyramids

D. Hexagon based pyramids

The volume of cone with surface area 7cm and height 14cm is

A. 120cm³

B. 160cm³

C. 180cm³

D. 200cm³

A cone has a circular base of radius 6m and volume 84π m³. The height of cone is

A. 7m

B. 6m

C. 8m

D. 8m

If a hemisphere has a curved surface area of 175cm² its radius is

A. 5.28cm

B. 3.45cm

C. 28.5cm

D. 45.3cm

VPQRS is rectangle based pyramid where PQ = 30cm, QR = 20cm and volume is 2000cm³, the height is

A. 20cm

B. 40cm

C. 10cm

D. 30cm