Note:
Note that the shape is a circle(s), as they all will rotate until they coincide. However, they are rotating towards each other
Step-by-step explanation:
One is rotating at 3°, while the other is rotating at 6°. We do not need to both with ON, for the question is not asking for that segment.
A circle has 360° To solve this, we must know that "the other" must complete a circle and overtake the other one.
So. First, solve for the circle (360°)
360/6 = 60
It takes one of the rays to rotate a full circle 60 seconds.
The other, at the same time, has rotated half way, as:
360/3 = 120
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Remember that one of the rays (the one that is faster), completes it's turn twice as fast. This means that you must solve for the mean:
(60 + 120)/2 = 180/2 = 90
90 seconds will be used until one overtakes the other
~<em>Senpai</em>
