Question

Sam cut grass at $0.10 per square metre

How much does sam earn cutting this area?

Answer 1

Answer:

Step-by-step explanation:

Let's break the area into two parts:

area grass in parts

Part A is a square:

Area of A = a2 = 20m × 20m = 400m2

Part B is a triangle.

it has a base of 20m and a height of 14m.

Area of B = ½b × h = ½ × 20m × 14m = 140m2

So the total area is:

Area = Area of A + Area of B = 400m2 + 140m2 = 540m2

 

Sam earns $0.10 per square metre

Sam earns = $0.10 × 540m2 = $54

Answer 2

Find the area in square meters. If the grassy area is 20m by 15m, the area is 20*15=300 sq m. Each square meter earns 10 cents, so 300 sq m earns 300*0.10=$30.