8. Find the missing heights of the solid cylinders below. Round your answers to the nearest whole number. Volume = 7 m3
(i) 2.5 m h 35 cm h
9. Calculate the value of the radius to one decimal place for each of the cylinders A–E. Show your work. Cylinder A
B Volume 950 cm3 720 m3 C 1 215 mm3 D 208 cm3 E 108 π m3
Height 10 cm 6 m 9 mm 4 cm 12 m Radius
10. Tim is designing a glass in the shape of a cylinder. The glass must hold a minimum of 1
Calculate the minimum height of the glass. (Note: 1 litre = 1 000 cm3
) Give your answer to the nearest whole number.
11. The volume of the cylinder shown is 140 cm3 Give your answer correct to one decimal place.
. Calculate the length of the radius. x cm 10 cm 12. Water is leaking from a cylinder-shaped container at the rate of 0 ⋅ 31 m3 per minute.
After 10 minutes, the water level has decreased by 0 ⋅ 25 metres. (i) Calculate the volume of water that has been lost. Give your answer to one decimal place. (ii) Calculate the radius of the cylinder. Give your answer to the nearest whole number.
13. The diagram shows a solid cylinder.
The cylinder has a diameter of (2 x ) cm and a height of ( x + 2) cm.
Taking it FURTHER
(i) Calculate the total surface area of the cylinder. Give your answer in terms of x.
(ii) If x = 5 cm, verify using your equation found in part (i) that the total surface area = 377 cm2 nearest whole number.