Question

no spam no copy step by step explanation​

Answer 1

Step-by-step explanation:

Given:-

ABC is an isosceles △.

AB=AC

AD is altitude.

∠ADB=∠ADC=90°

To prove:-

(i) AD bisects BC, i.e., BD=CD

(ii) AD bisects ∠A, i.e., ∠BAD=∠CAD

Proof:-

In △ADB and △ADC,

∠ADB=∠ADC[Each 90°]

AB=AC[Given]

AD=AD[Common]

By R.H.S congruency,

△ADB≅△ADC

By C.P.C.T.

BD=CD

∠BAC=∠CAD

Hence proved.

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Answer 2

Answer:

Pls refer to the pic above for the answer.

Step-by-step explanation:

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