Answer:
462cm^2
Step-by-step explanation:
Given: r1=14cm, r2=7cm
To find: area of shaded region
Solution:
Area of shaded region= Area of bigger
circle- Area of smaller circle
Area pf shaded region= π r1^2-π r2^2
=π(r,1^2-r2^2)
=π(14^2-7^2)
=π(196-49)
=π147cm^2
=22/7*147cm^2
=22*21cm^2
=462cm^2
Therefore area of shaded region is 462 cm^2
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Answers & Comments
Answer:
462cm^2
Step-by-step explanation:
Given: r1=14cm, r2=7cm
To find: area of shaded region
Solution:
Area of shaded region= Area of bigger
circle- Area of smaller circle
Area pf shaded region= π r1^2-π r2^2
=π(r,1^2-r2^2)
=π(14^2-7^2)
=π(196-49)
=π147cm^2
=22/7*147cm^2
=22*21cm^2
=462cm^2
Therefore area of shaded region is 462 cm^2