This quant practice question tests your understanding of basic properties of sum of angles in a triangle and elementary number properties.
2. Sum of angles in a triangle 2 concepts
If the largest angle in a triangle is 70o, what is least possible value of the smallest angle of the triangle?
Correct Answer Choice (C). 40o
The sum of the interior angles of a triangle is 180o.
The question states that the largest of the angles is 70o.
Objective: Find the least possible value of the smallest of the three angles.
The least value for the smallest angle will be when the other two angles are as large as possible.
The largest value that the other two angles can take is 70o each.
Therefore, the least value of the smallest of the angles = 180 - 70 - 70 = 40o
The correct answer is Choice (C).
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