Answer:
=£186.89
Explanation:
A=1/2(a+b)h
a||b dimensions
A=1/2(16+10)×7.6
=98.8m²
Given that 1 litre of paint covers an area of 1.9 sq m, we divide the area of the trapezium by this and multiply by the price per liter to get total cost:
paint used= Area/paint m²
98.8/1.9
=52 litres
We are given that each 5l tin of paint costs £16.99 . We therefore divide the paint used by 5 and multiply by £16.99
52/2
=10.4
11tins
cost=11×16.99
=£186.89