Q1 of 61 Page 215

A ramp for unloading a moving truck has an angle of elevation of 30°. If the top of the ramp is 0.9 m above the ground level, then find the length of the ramp.


Given AB = 0.9 m, AC = ?


In the above right triangle,


AC = Hypotenuse


AB = Perpendicular


BC = Base


We know,





⇒ AC = 0.9 x 2


⇒ AC = 1.8 m


∴ length of ramp is 1.8 m


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