(i) C, and C, are two circles. Their radii are r, and r, respectively and their areas are A, andA
respectively. If , :r. = 2: 3 then find A,: A
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Answer:
area of circle is \pi r²
- So for C1, r =2
\pi r² = 22/7 × 2²
= 22/7 ×4
=88/7 or 12.571428 or you can write 12.5 unit²
- For C2 ,r=3
\pi r²= 22/7x3²
=22/7×9
=198/7
=28.571428 or you can write 28.5 unit²
So for A1:A2 = 12.5:28.5
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Not satisfied with your answer it is a wrong answer
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