Find the area of the shaded region in each of the following:
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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
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tq
Answered by
8
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
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