This figure consists of a square and a quarter circle.


What is the perimeter of this figure?


Use 3.14 for π .


Enter your answer as a decimal in the box.

This figure consists of a square and a quarter circle. What is the perimeter of this figure? Use 3.14 for π . Enter your answer as a decimal in the box. class=

Verified Answer :

5×4=20 (for the square)
\((2)\pi(5)\)=31.4÷4=7.85 (for part of the circle)
20+7.85=27.85=perimeter

Answer:

The perimeter of a figure be 27.85 ft .

Step-by-step explanation:

Formula

Perimeter of a square = 4a

Where a is the side of a square .

\(Perimeter\ of\ a\ circle = 2 \pi r\)

Where r is the radius of a circle .

As the figure given in the question is consist of the square and  \(\frac{1}{4}th\) part of the circle .

As the length of the square side  = 5 ft

Radius of the \(\frac{1}{4}th\) part of the circle  = 5 ft

3.14 = π

Thus

\(Perimeter\ of\ figure = 4a + \frac{2\pi r}{4}\)

Putting values in the formula

\(Perimeter\ of\ figure = 4\times 5 + \frac{2\times 3.14\times 5}{4}\)

\(Perimeter\ of\ figure = 20 + \frac{31.4}{4}\)

\(Perimeter\ of\ figure = 20 +7.85\)

\(Perimeter\ of\ figure = 27.85 ft\)

Therefore the perimeter of a figure be 27.85 ft .