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Q.

The angle at a point is:

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a

b

c

d

answer is D.

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Detailed Solution

concept
Here the angles are measured with respect to a circle centred at the common endpoint of the ray and to find the value we need we know that the sum of the angles at a point is always 360 degrees.
It turns out that the angle is one point. We know that the angles are measured with respect to a circle centred at the common endpoint of the rays. For example, if you pull a few rays from a point and sum all the angles between adjacent rays, the sum will always be 360 degrees, regardless of the number or direction of the rays. The sum of angles at a point is always 360 degrees. So the required value is 360∘.
Hence, option 4 is correct.

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