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Please help me with this

Please help me with this-example-1
User Omiod
by
5.5k points

1 Answer

4 votes

Explanation:

a. area of shaded region= area of rectangle -area of triangle

area= (17*14)-(1/2*8.7*9.5.sin72)

= 159.4m²

b.20l cover 20m²

so 159.4l would cover 159.4m²

20m²-->(cost)$ 21.99

159.4-->?

(21.99*169.4)÷20

=$175.3

User Danieleee
by
4.7k points