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ഒരു ത്രികോണത്തിന്റെ വശങ്ങൾ 3 cm, 4 cm, 5 cm ആയാൽ ആ ത്രികോണത്തിന്റെ വിസ്തീർണം കാണുക :

A9 cm²

B6 cm²

C10 cm²

D15 cm²

Answer:

B. 6 cm²

Read Explanation:

area=√(s(s-a)(s-b)(s-c)) s= a+b+c/2 = 3+4+5/2= 6 area = √(6 ( 6-3)(6-4)(6-5)) = √(6 x 3 x 2 x 1 )= √36 = 6cm²


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