Question

Prove that the measure of two angles of a triangle
If equal, the lengths of their opposite arms will be equal.​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Step-by-step explanation:

in ∆ABC

construct the altitude AD

Now,

in ∆ABD &∆ACD

AD=AD. (common)

angle ADB= angle ADC. ( both 90)

angle ABD= angle ACD. (given)

therefore ,∆ABD &∆ACD are congruent by RHS

So, AB=AC. (by CPCT)

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