Question

Assertion: Two angles measures a – 60° and 123° – 2a. If each one is opposite to equal sides of an isosceles triangle, then the value of a is 61°. Reason: Sides opposite to equal angles of a triangle are equal


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Answer 1

Answer:

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Step-by-step explanation:

Assertion - Two angles measures a – 60° and 123° – 2a. If each one is opposite to equal sides of an isosceles triangle, then the value of a is 61°. Reason: Sides opposite to equal angles of a triangle are equal.

Answer 2

Answer:

a) Both assertion and reason are correct and the reason is the correct explanation of the assertion

Explanation:

a - 60 = 123-2a (Since it is an isosceles triangle)

3a = 183

a = 183/3 = 61