Question

If ABC is a right angel isosceles triangle then find greatest angel​

Answer 1

Answer:

Since AB=AC,

So, △ABC is Right-angled isosceles.

∠B=∠C ...(angles opp. to equal sides are equal)

∠A+∠B+∠C=180

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...(angle - sum property of a triangle)

Substituting ∠B=∠C, ∠A=90

o

90

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+2∠B=180

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2∠B=180

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–90

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=90

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⇒∠B=45

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