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Construct Triangle When Its Base, Difference of the Other Two Sides and One Base Angle Are Given

In ABC , ∠ A ...

Question

In △ABC, ∠A = 40° and ∠B = 60°. The longest side is

A

CD

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B

AC

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C

BC

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D

AB

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Solution

The correct option is D
AB

By angle sum property, ∠C = 80°, in a triangle the greater angle has the longer side opposite it.

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