A circular garden has a diameter of 2.4m. a) The garden is to be enclosed with plastic edging. How much edging is needed? b) The edging costs $4.53/m. You have a budget of $40.00. Will you have enough to buy the edging?
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A circular garden has a diameter of 2.4m. a) The garden is to be enclosed with plastic edging. How much edging is needed? b) The edging costs $4.53/m. You have a budget of $40.00. Will you have enough to buy the edging?
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Answer:
Radius=
Answer of (A)
R=2.4/2
radius=1.2
length of plastic edging=circumference of circular garden=2πr
2×22/7×1.2
=7.536m=7.53m(apprx.)
Answer of (B)
cost=rate×area
cost=4.53×7.53=34.1109
which is less than $40.00
so $40 is enough to buy the edging
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