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12 ഭുജങ്ങൾ ഉള്ള ഒരു ബഹുഭുജത്തിന്റെ ഒരു അകകോണിൻ്റെ അളവ് എത്ര?

A120

B150

C130

D180

Answer:

B. 150

Read Explanation:

n വശങ്ങളുള്ള ബഹുബുജത്തിൻ്റെ ആന്തര കോണുകളുടെ തുക = (n-2)180 (12-2)180=10×180 = 1800 ഒരു ആന്തര കോണിൻ്റെ അളവ്= 1800/12 = 150°


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