Question

Find the length of the tangents drawn from an external point to a circle of radius 5cm,if they are inclined to each other at an angle of 90°

Answer 1

5 is the length of tengant

Answer 2

We know that tangents make 90 angle with radius.

Than, 90+90+90+ 4th angle= 360 (one angle is given as 90)

4th angle= 90

if all the angles are equal then sides will also be equal and it will be a square.

(it will not be a rectangle as the adjacent sides that is radius are equal.)

and hence, the length of tangent = 5cm.

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