if the ratio of two sphere is 2:3 then the ratio of their surface area is
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Formula of surface area = 4πr²
Area α r²
A1/A2 = (r1/r2)² = (2/3)² = 4/ 9
Ratio of areas is 4:9
Area α r²
A1/A2 = (r1/r2)² = (2/3)² = 4/ 9
Ratio of areas is 4:9
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