Exams › SSC CGL (Prelims) › General

A kite string is stretched completely straight. If the vertical height of the kite is 45 meters and the string makes an angle of 30° with the level ground, what is the minimum length of the string required?

1. 45m
2. 60m
3. 90m
4. 120m

Correct answer: 90m

Solution

In the right triangle formed, sin 30^b0 = \frac{\text{height}}{\text{string length}}. So, \frac{1}{2} = \frac{45}{L}, which gives L = 90 m. Hence the minimum string length is 90 m.

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