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ഒരു ചതുരത്തിന്റെ വീതി 2cm, ചുറ്റളവ് 18cm ആയാൽ നീളം എത്ര?

A8

B14

C7

D16

Answer:

C. 7

Read Explanation:

വീതി (b)= 2cm , നീളം = l ആയാൽ ചുറ്റളവ് = 18cm ⇒ 2(l+b) = 18cm 2(l+2) = 18cm 2l+4 = 18cm 2l = 14cm l =14/2 = 7cm

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