This figure consists of a rectangle 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. please help giving away lots of points

This figure consists of a rectangle 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. plea class=

Verified Answer :

Answer:

\(61.27\ cm\)

Step-by-step explanation:

we know that

The perimeter of the figure is equal to the perimeter of the rectangle plus the circumference of a quarter circle

so

Find the perimeter of the rectangle

The perimeter of rectangle is equal to

\(P=2(L+W)\)

we have

\(L=20\ cm\)

\(W=2\ cm\)

substitute

\(P=2(20+2)=44\ cm\)

Find the circumference of a quarter circle

\(C=\frac{1}{4}2\pi r\)

we have

\(r=11\ cm\)

substitute

\(C=\frac{1}{4}*2*(3.14)*(11)=17.27\ cm\)

Find the perimeter of the figure

\(44\ cm+17.27\ cm=61.27\ cm\)

Answer:

59.28 cm

Step-by-step explanation:

The perimeter of the shape is given by the formula:

Let the perimeter of the rectangle be P = 2 (20+ 2)

                                                                  = 84 cm

The perimeter of the quarter circle be     = \(\frac{1}{4} (\pi * 22)\)

                                                                    = 17.28 cm

Total perimeter   = 20 + 2 + 9 + 11 + 17.28

                           = 59.28 cm