Question

8. Find the area of the shaded region in the following figures. (Take a = 3.14)इफ यू हेल्प मी आई विल मेक ब्रेनली ​

Answer 1

Answer:

A no=. diameter of shaded circle is =7×2=14cm.

and diameter of small circle is =3.5 ×2=7.0cm.

Step-by-step explanation:

answer =14-7=7cm

Answer 2

Step-by-step explanation:

1.Radius of smaller circle is 3.5

2.Radius of bigger circle is 7cm

3.So area of shaded region in figure 1 is Area of bigger circle - Area of smaller circle.

=3.14×7×7-3.14×3.5×3.5

so area of shaded region is 41.32 cm

4. Area of shaded region in figure 3 is

Area of circle - Area of rectangle

so 3.14×14×14-7×3 =594.44

5.Area of shaded region in figure 3 is

area of rectangle - area of 4 sector

so 20×14-4×_90_×3.14×2×2=267.44

360

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