alleryબે ગોળાઓની ત્રિજ્યાઓનો ગુણોત્તર 1:2 છે. તેમની સપાટીના ક્ષેત્રફળોનો ગુણોત્તર કેટલો થશે?
A1:6
B1:2
C1:4
D1:8
Answer & Solution
Correct answer: C. 1:4
સપાટીનું ક્ષેત્રફળ ત્રિજ્યાના વર્ગ અનુસાર બદલાય છે, તેથી ગુણોત્તર 1:4 છે.
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