In triangle ABC, AB = 6 cm, AC = 8 cm, and BC = 9 cm. The length of median AD is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e.
cm
Explanation:
6² + 8² = 2[m² + (9/2)²]
⇒ 100 = 2[m² + (9/2)²]
⇒ 50 = [m² + 81/4]
⇒ m² = 50 - (81/4)
⇒ m² = 119/4
⇒ m = cm