Question

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step by step explanation with diagram​

Answer 1

Answer:

Step-by-step explanation:

Prove that angles opposite to equal sides of an isosceles triangle are equal.

Answer 2

Step-by-step explanation:

ABC is a given triangle with, AB=AC.

To prove: Angle opposite to AB= Angle

opposite to AC (i.e) ∠C=∠B

Construction: Draw AD perpendicular to BC

∴∠ADB=∠ADC=90 degrees

Proof:

Consider △ABD and △ACD

AD is common

AB=AC

∴∠ADB=∠ADC=90 degrees

Hence ∠ABD=∠ACD

∠ABC=∠ACB

∠B=∠C. Hence the proof.

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