Find the area of a ring shaped region enclosed
between two concentric circles of radii 20 cm
Answers
Answered by
4
Answer:
A=π(R²-r²)
R=Outer radius
r= Inner radius
Step-by-step explanation:
Answered by
12
Answer:
Area of ring = π(20)² – π(15)²
= 400π – 225π
= 175 π
= 549.7 cm²
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