Question

AbC is a triangle in which angle B = 2 angle C . D is a point on side BC such that AD bisects angle BAC and AB=BC , prove that Angle BAD=22½​

Answer 1

Answer:

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Answer 2

Answer:

BAD=22½​

Step-by-step explanation:

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

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