Question
The three angles of a triangle are in AP If the largest angle is twice the smallest angle, then the largest angle is(a) $40^{\circ}$(b) $60^{\circ}$(c) $100^{\circ}$(d) $80^{\circ}$
Step 1
Since the angles are in arithmetic progression and the sum of the angles in a triangle is $180^{\circ}$, we can write the equation as $\alpha + (\alpha + d) + (\alpha + 2d) = 180^{\circ}$. Show more…
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