QUESTION : The area enclosed between the circumference of two concentric circles is 16 Pi cm square and their radii are in ratio 5:3 . What is the area of the outer circle?
(Use the pi = 3 . 14 )
ANSWER : ?
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Answered by
2
Answer:
25 Pi cm^2= 78.539 cm^2
Step-by-step explanation:
Pi((5x)^2-(3x)^2)= 16 Pi
Therefore x= 1
outer circle radii= 5 cm
Area= Pi * 5^2= 78.539 cm^2
Answered by
5
Answer:
78.57 cm²
Step-by-step explanation:
See the photo.
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