Question

garden is 150m long and 120m wide. there are two circular skating floors with radii equal to 35m and 42m in the garden. find the cost of covering the remaining portion of the garden with grass at rate of 1.25per m square

Answer 1

Area of field = 150×120
$150 \times 120 = 18000$
Area of circle with radii 35 m
$\pi \times 35 \times 35 = 3850$
Area of circle with radii 42 m
$\pi \times 42 \times 42 = 5544$
Addition of areas=
$3850 + 8606 = 9394$
Rem area
$18000 - 9394 = 8606$
Cost
$1.25 \times 8606 = 10757.50$

Answer 2

Here is your answer in attachment


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