Question

vays. Paint Jackson is buying paint for his wall. 7.5 m 2.5 m 12 m One litre of paint will cover 9 m2. How many litres of paint does he need to cover the wall? Justify your answer.​

Answer 1

Answer:

the wall is a trapezium

area of a trapezium is

= ½×(sum of parallel sides)×(height)

= ½×(7.5+2.5)×12

= 10×6

= 60m²

9m² uses 1 litre

1m² uses 1/9 litres

60m² uses (1/9×60) litres

1/9×60

=⅓×20

=20/3

= 6.67 litres (approx.)

Step-by-step explanation:

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