A kite flying at a height of 60 metres above the ground is attached to string that makes an angle of 45° with the ground. What is the length (in metres) of the string?
Show answer & explanation
Correct answer: B
Explanation
Given:
Height = 60 m
Angle = 45°
By the formula:
sin θ = perpendicular / hypotenuse
sin 45° = 60 / string
1/√2 = 60 / string
Length of string = 60√2 m