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രണ്ടു ഗോളങ്ങളുടെ വ്യാപ്തങ്ങളുടെ അംശബന്ധം 27 : 64 ആയാൽ ഉപരിതല വിസ്തീർണ്ണങ്ങളുടെ അംശബന്ധം _____ ആകുന്നു.

A1: 2

B3 : 4

C9 : 16

D3 : 8

Answer:

C. 9 : 16

Read Explanation:

വ്യാപ്തങ്ങളുടെ അംശബന്ധം 27 : 64 4/3 πR1³ : 4/3 πR2³ = 27:64 ⇒ R1³: R2³= 27:64 ⇒R1 : R2 = 3 : 4 ഉപരിതല വിസ്തീർണ്ണങ്ങളുടെ അംശബന്ധം 4πR1² : 4πR2² = 4π × 9 : 4π ×16 ⇒9 : 16


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