Question

Find the area of the shaded region in each of the following:
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Answer 1

Answer:

Hey mate here is the answer

Step-by-step explanation:

Use the formula

shaded area= π[R^2-r^2]

here R=7+7=14

r=7

so

we have

π[196-49]

22/7*(147)

22*21

=462m2 is the area of shades region

I hope it helps you

plZ Mark me as brainliest

tq

Answer 2

Firstly

Find the area od unshaded area

i.e Πr²

= 22/7×7×7

cancel 7 seven by 7 in the denominator!

so. 22×7

= 154 m²

Hence , find the area of whole circle

Radius = 7 + thickness

= 7+7

= 14 cm

i.e Πr²

= 22/7×7×14

cancel 7 and 14 as they are factors of 7

so, 22× 7/2

= 154/2

= 77 m²

There fore ,

Area of shaded region = area of small circle - area of whole circle

= 154-77

= 77 m²