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In a right triangle, one acute angle is 30° and the side opposite the 30° angle is 7 cm.
Find the side opposite the 60° angle (in cm), in terms of √(3).

Class 10Trigonometric Ratios of Standard AnglesTrigonometry
  • A
  • B
  • C14
  • D7

Step-by-Step Solution

In a 30-60-90 triangle the sides are in ratio 1 : : 2. Side opposite 30° = 7 (the '1' part), so side opposite 60° = .
Answer: A)

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