Answer:
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Step-by-step explanation:
Answer:
Its not
Step-by-step explanation:
If you mean how is 2/10 equal to 1/5, then it is because 2 divided by 10 gives you the same answer (0.2) that 1 divided by 5 does.
Least common multiple is 120
The perimeter of a sector includes two segments that are each equal to the radius, and the arc length. For your sector, the arc length is found as
perimeter = 4r = r + r + arc-length
2r = arc-length
Now we also know that arc-length is related to the central angle (in radians) by
arc-length = r*central-angle
2r = r*central-angle
2 = central-angle
The measure of the central angle of the sector is 2 radians.
