Question

A circular lawn has a row of bricks around the edge. The diameter of the lawn is about 40 feet. Which is the best estimate for the amount of grass in the lawn? Explain how you figured out your answer.
125 feet
125 square feet
1,250 feet
1,250 square fee

Answer 1

$Diameter \:of \: the \: circular \:lawn (d) = 40\:cm$

$\red{ Amount \:of \:the \:grass \: in \:the \:lawn}\\= Area \:of \: the \: circle \\= \pi \Big(\frac{d^{2}}{4} \Big )</p><p>\\= 3.14 \times \Big( \frac{40\times 40 }{4}\Big)\\= 3.14 \times 40 \times 10 \\= 3.14 \times 400\\= 1256 \\\approx 1250 \: square \:feet$

Therefore.,

$\red{ Amount \:of \:the \:grass \: in \:the \:lawn}\\\green {\approx 1250 \: square \:feet }$

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Answer 2

Answer:

the ancer is 1,250 square feet

Step-by-step explanation: