Question

3. If AABC is an isosceles triangle in which AB = AC and 2B = 60°
then the measure of LA is​

Answer 1

Step-by-step explanation:

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

Answer 2

Step-by-step explanation:

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