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ഒരു സമചതുര സ്തൂപികയുടെ വക്കുകളെല്ലാം 12 cm വീതമാണ്. അതിൻ്റെ പാർശ്വ മുഖങ്ങളുടെ പരപ്പളവ് എത്ര?

A144

B144√3

C72

D72 √3

Answer:

B. 144√3

Read Explanation:

പാർശ്വ മുഖങ്ങളുടെ പരപ്പളവ് = 4 x √3/4 x a^2 = 4 x √3/4 x 144 = 144√3 cm^2


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