Question

ABC is an isosceles triangle with AB =AC and angle B =45°, find angle A​

Answer 1

Answer:

Therefore angle b =angle c

Therefore using angle sum property

<a+<b+<c=180

Therefore as angle b=angle c=45

Therefore angle a+2×45=180

=>90+<a=180

=><a=180-90

=><a=90

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Answer 2

Answer:

Therefore angle b =angle c

Therefore using angle sum property

<a+<b+<c=180

Therefore as angle b=angle c=45

Therefore angle a+2×45=180

=>90+<a=180

=><a=180-90

=><a=90

Hope it helps

Pls mark it brainliest..

Thanks...

Step-by-step explanation: