Length 4.5m = 9cm on the scale drawing Scale 1cm to 0.5m

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Presentation transcript:

Length 4.5m = 9cm on the scale drawing Scale 1cm to 0.5m For carpet grip we need to calculate PERIMETER 4m Perimeter = 6 + 3 + 2 + 1.5 + 4 + 4.5 = 21m (8cm) Number of 1 metre grips = 21 (3cm) 1.5m No of packs = 21 ÷ 5 = 4.2 packs 2m So we need 5 packs (4cm) 4.5m (9cm) Cost = 5 x £ 4.50 = £22.50 (6cm) 3m (12cm) 6m

Fitting carpet means we need to calculate AREA Minimum Area required = 18 + 6 = 24m2 Remember the carpet only comes 4m wide ! 4m 4.5m 6m 1.5m 2m 3m Area = L x B = 4 x 4.5 = 18m2 6m2 What’s the best way to fit it ?

Minimum AREA required = 18 + 6 = 24m2 One possible solution 4m 4.5m 6m 1.5m 2m 3m Area 4 x 6.5 = 26m2 Cost £12 x 26 = £ 312 2m Total cost £22.50 + £312 = £334.50 With a bit left over !

Minimum AREA required = 18 + 6 = 24m2 Best possible solution 4m Area 4 x 6 = 24m2 1.5m 2m 4.5m 3m Cost £12 x 24 = £ 288 6m Total cost £22.50 + £288 = £310.50 Nothing left over !