Question

51.
ABC is an isosceles triangle with AB AC and AD is altitude, then
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Answer 1

Then all the altitudes will be equal.

Answer 2

Answer:

In tringle ABD & ACD

AB=AC (GIVEN)

ANGLE ADB=ANGLE ADC(BOTH ARE RIGHT ANGLES)

AD=AD(COMMON)

SO BOTH THE TRIANGLES ARE CONGRUENT

THEREFORE BD=CD(CPCT)

ANGLE BAD=ANGLE CAD(CPCT)

HENCE AD BISECTS BOTH BC AND ANGLE A

Step-by-step explanation:

I hope it's helpful