the diameter of two circle are in ratio 3 : 2 to find the ratio of their area find the area of circle whose circumference is 77 CM
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Question 1:-
The diameter of two circle are in ratio 3 : 2. Find the ratio of their area.
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Soluton:
Area of Circle 1 : Area of Circle 2
=
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Question 2:-
Find the area of circle whose circumference is 77 cm.
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Solution:-
Circumference = 77cm
→ 2πr = 77cm
→ r × 2 × (22/7)= 77 cm
→ r × 44/7= 77 cm
→ r = 77 × 7/44 cm
→ r = 49/ 4 cm
Area of the circle:
= 471.625 cm²
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