Question

1
7. In the figure, 4 quadrants, each of radius 2 m,
are removed from a rectangle. Find a
(i) the perimeter,
BiGii) the area,
B Gof the figure.
1386
25
2 m
2 m
2 m
2 m
3 m
3 m
2 m
2 m
1
2 m
2 m
- 9 m
co​

Answer 1

Answer:

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Answer 2

Step-by-step explanation:

Correct option is

A

Perimeter = 20.56 cm

B

Area = 9.72 cm

2

Area of square =Side

2

=4

2

=16cm

2

Area of cut portion = Area of two circles = 1 circle + 4quadrants

=2× pi×1

2

=6.28cm

2

So, area of remaining portion of square =(16−6.28)=9.72cm

2

Perimeter of the shaded region =4 quadrant + 1 circle+portion of the square

=4×

4

2πr

+2πr+4(2)

=4×

4

2π(1)

+2π(1)+8

=4π+8

=20.56cm