Question

please solve the question in the attachment
Q. 10

Answer 1

In triangle ABD and triangle ADC
AD = AD ( common)
Angle CAD = Angle BAD ( given)
AngleADB = AngleADC ( each angle 90 degree)
So by SAS criterion triangle ABD is conGruent To Triangle ADC.
AB = AC ( by cpct)
Since the two sides of triangle ABC are equal hence it is an isoceles triangle.

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Answer 2

here is your answer hope it would be helpful to you.