Question

When a line is drawn from an external point to a circle(tangent) making 90°?justify your answer.

Answer 1

Answer:

yes it can from right angle bucz

when we draw a line externally to a circle it form right angle with its radius line

proof

when we draw a tangent and we join the centre of circle it from right angle triangle

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Answer 2

yes it will surely make right angle as circle are made up of many dots .This line i.e. tangent will pass through a point only. so if we extend a line from that point it will be 90°