Volume www mathsrevision com N 3 Volume of

Volume www. mathsrevision. com N 3 Volume of a cuboid Liquid Volumes 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com N 3 Q 1. 35% of 360 Q 2. Calculate 5 + 6 31 -Oct-21 x Compiled by Mr. Lafferty Maths Dept. 7

Volume of a cuboid www. mathsrevision. com N 3 Learning Intention 1. To understand how to calculate the volume of cuboid. Success Criteria 1. To know the formula. 2. Use formula correctly. 3. Show working and appropriate units. 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Volume of a cuboid www. mathsrevision. com N 3 18 cubes fit the base. 4 cm 6 cm 3 cm = 1 centimetre cube = 1 cm³ 4 layers of 18 cubes = 4 x 18 = 72 centimetre cubes = 72 cm³ 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

A short cut ! www. mathsrevision. com N 3 height Area of rectangle 4 cm 6 cm 3 cm breadth length Volume = 6 x 3 x 4 = 72 cm³ Volume = length x breadth x height 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Example Working Volume = l x b x h N 3 V = 18 x 5 x 27 V = 2430 cm³ 27 cm 5 Heilander’s cm Porridge Oats 18 cm 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Example Volume = l x b x h N 3 www. mathsrevision. com Working V=2 x 2 x 2 V = 8 cm³ 2 cm 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Find the length the cuboid www. mathsrevision. com N 3 4 cm V=200 cm 3 This just an equation. We know how to solve them ! Volume = L x B x H 5 cm 200 = L x 5 x 4 200 = 20 L 10 L cm 20 L = 200 L = 10 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Volume of a cuboid www. mathsrevision. com N 3 Now try N 4 Lifeskills TJ Ex 1 Ch 18 (page 144) 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Starter Questions www. mathsrevision. com N 3 Q 1. Find the area of the triangle. 10 cm Q 2. 31 -Oct-21 Calculate 40 – 2. 95 Compiled by Mr. Lafferty Maths Dept. 6 cm

Liquid Volume www. mathsrevision. com N 3 Learning Intention 1. To understand the term liquid volume using millilitres and litres. Success Criteria 1. To know the term liquid volume. 2. Work out volumes using 1 ml and litres. 3. Answer to contain appropriate units. 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Liquid Volume I’m a very small duck! N 3 How much water does this hold? 1 cm Volume = l x b x h = 1 cm³ A cube with volume 1 cm³ holds exact 1 millilitre of liquid. A volume of 1000 ml = 1 litre. 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.

Example Liquid Volume Working Volume = l x b x h N 3 www. mathsrevision. com V = 6 x 3 x 12 12 cm 3 cm = 216 ml Orange Flavour 6 cm How much juice can this carton hold? 31 -Oct-21 V = 216 cm³ So the carton can hold 216 ml of orange juice. Remember: 1 cm³ = 1 ml Compiled by Mr. Lafferty Maths Dept.

Example Working Volume = l x b x h Liquid Volume N 3 V = 100 x 30 x 50 V = 150 000 cm³ 30 50 cm cm = 150 000 ml = 150 litres 100 cm How much water can this fish tank hold in litres? 31 -Oct-21 3 tank can So the fish 1 cm = 1 ml hold 150 ml litres of water. 1000 = 1 litre Compiled by Mr. Lafferty Maths Dept.

Liquid Volume www. mathsrevision. com N 3 Now try N 4 Lifeskills TJ Ex 2 Ch 18 (page 146) 31 -Oct-21 Compiled by Mr. Lafferty Maths Dept.