If two adjacent angles have their exterior sides in perpendicular lines, then the two angles are also perpendicular.
Both exterior and interior angles sum up from 90 - 180 degrees. Therefore, if an exterior angle is perpendicular, then the interior angle must also be perpendicular in order for them to sum up to that amount of degrees (90 - 180).
Answer:
9.87%
Step-by-step explanation:
We know that the clock must ring 4 times, but there must be 7 rings. The only way for this to happen is that of the 4 times, 3 that the bell rings 2 times and 1 that rings only once. So it would be:
2 + 2 + 2 + 1 = 7
So the final probability would be the multiplication of these events, therefore:
(2/3) * (2/3) * (2/3) * (1/3) = 0.0987
In other words, the probability is 9.87%
Answer:
5mm
Step-by-step explanation:
Because, the radius is: It is the line between any point on the circle and the midpoint of the circle..
<span>you're given both arcs, minor and major, or near and far arcs, all you need to do, is really plug them in</span>