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ഒരു ത്രികോണത്തിന്റെ ഒരു വശത്തിന്റെ നീളം 12 സെ.മീറ്ററും അതിന്റെ എതിർ മൂലയിൽ നിന്നു ആ വശത്തേക്കുള്ള ലംബദൂരം 15 സെ.മീറ്ററും ആയാൽ വിസ്തീർണ്ണം എത്ര?

A90 ച.സെ.മീ.

B180 ച.സെ.മീ.

C70 ച.സെ.മീ.

D45 ച.സെ.മീ.

Answer:

A. 90 ച.സെ.മീ.

Read Explanation:

വിസ്തീർണ്ണം = 1/2 × വശത്തിന്റെ നീളം × ലംബദൂരം = 1/2 × 12 × 15 = 90 ച.സെ.മീ


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