Mathematics
If an arc of a circle subtends a right angle at any point on the remaining part of the circle, then the arc is a :
minor arc
major arc
semi-circle
none of these
Circles
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Answer
An angle subtended by an arc at a point on the remaining part of the circle is an angle at the circumference.
An angle in a semicircle is a right angle.
Hence, option 3 is the correct option.
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