English, asked by bhaskarasg, 9 months ago

In the figure ,if l||m, ∆abc=∆abd=40° and ∆bad =90°,then prove that ∆ bcd is an isosceles triangle

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Answered by abasimbiswas

7

Answer:ABC =ABD GIVEN

BAC=BAD GIVEN

SO, BCD is an isoceles triangle

Explanation:

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