Question

If the angles of the triangle are in the ratio of 1:2:3, then what is the smallest angle?

A 15° Correct Answer Incorrect Answer
B 30° Correct Answer Incorrect Answer
C 25° Correct Answer Incorrect Answer
D 40° Correct Answer Incorrect Answer

Solution

Let the angles be x, 2x and 3x. By angle sum property, ⇒ x + 2x + 3x = 180° ⇒ x = 30° ∴ The smallest angle is 30°.

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