Question

In equalataral triangle, AD is altitude, then 4Ad² equals to -
(a) 2BD² (b) 2DC² (c) BC² (d) 3AB²​

Answer 1

Step-by-step explanation:

IN THE TRIANGLE AD IS ALTITUDE .

AD²+DB²=AB²

⇒AD²+(1/2 * BC)²=AB²

⇒AD²+BC²/4=AB²

⇒4AD²+BC²=4AB²

⇒4AD²=4AB²-BC²

⇒4AD²=4AB²-AB²

⇒4AD²=3AB²

⇒AD²=3/4*AB²

Answer 2

Answer:

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