Question
(a) The perimeter of a square is 28 mm.
Work out the length of one side of the square.
(b) Calculate the volume of a cylinder with radius 5.2 cm and height 15 cm.
Answer/Explanation
Ans:
(a) 7
(b) 1270 or 1274
or 1274.2 to 1274.4
Question
A cylinder has radius 3.6cm and height 16cm.
Calculate the volume of the cylinder.
Answer/Explanation
Ans: 651 to 652
Question
The diagram shows a cuboid.
The volume of this cuboid is 720cm3.
The width is 8cm and the length is 15cm.
Calculate h, the height of the cuboid.
Answer/Explanation
Ans: 6 cm
Question
A cuboid has volume 288cm3.
(a) The cuboid has length 12cm and width 5cm.
Calculate the height of the cuboid.
Answer/Explanation
Ans: 4.8 cm
(b) 1cm3 of the cuboid has a mass of 4g.
Work out the mass of the cuboid.
Answer/Explanation
Ans: 1152 g
Question
The volume, V, of a cylinder with radius r and height h is V = πr2h.
Calculate the volume of a cylinder with radius 7cm and height 8 cm
Answer/Explanation
Ans: 1230 or 1231 to 1232