Volume of other 3D shapes – prisms and cylinders 2 Find the volumes of the cylinders. Find the answer to part a) to 3 significant figures and the answer to part b) in terms of π. a) 1 0.8 m 1.2 m Find the volumes of the shapes. a) m3 8 cm 10 cm b) 6 cm 30 mm cm3 120 mm b) mm3 5 cm 7 cm 3 cm 3 Both triangular prisms have a volume of 84 cm3 Find the unknown lengths. a) cm3 c) 6 cm 6 mm x 5 cm 5 mm x= cm y= cm b) 12 mm 4.5 mm 8 cm 10 cm mm3 y © White Rose Maths 2020 4 6 The diagram shows a concrete solid used in construction. 1 litre = 1,000 cm3 Find the volume of the solid. Here is a diagram of a swimming pool and a sign from the pool. Give your answer to 3 significant figures. 15 m The pool depth increases at a constant rate and is then a constant depth. 7m Swimming Pool Information Depth in shallow end 1.1 m m3 5 x Work out the length marked x. Find the volumes of the solids. Depth in deep end 1.9 m Length of pool 25 m Width of pool 10 m Pool capacity 409,000 litres Show all your workings. a) 12 cm 15 cm x= 15 cm x is a positive integer greater than 1 7 13 cm m Which shape has the greatest volume? A B C cm3 b) 3x 86 mm 3x 3x 23 mm 20 mm 49 mm 8x x 2x 2x 12x x 60 mm mm3 © White Rose Maths 2020