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 total length of the bricks?

Answer 1

Answer:

125.66 feet

Step-by-step explanation:

To find the total length of the bricks, we can solve for the circumference:

Use the circumference formula, C = 2$\pi$r

Since the diameter is 40 feet, the radius is 20 feet.

Plug in the radius:

C = 2$\pi$r

C = 2$\pi$(20)

C = 125.66

So, the total length of the bricks is approximately 125.66 feet

Answer 2

The best estimate for the total length of the bricks, using the circumference formula, is: 126 feet.

Circumference of a Circle

• The circumference of a circle is the length around the circle.
• Circumference (C) = 2πr or πd

Given:

Diameter of circular lawn (d) = 40 feet

Required:

Total length of the bricks around the edge of the circular lawn

Applying the circumference formula, plug in the value of d

Circumference = π × 40

Circumference = 126 feet

Therefore, the best estimate for the total length of the bricks, using the circumference formula, is: 126 feet.

Learn more about the circumference of a circle on:

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