Question

The radius of a circle is 5cm. Write the number of tangents that can be constructed from a

point 4cm from the centre​

Answer 1

Answer:

Step 1 : Draw a circle of radius 5 cm with center O.

Step 2: Take a point A on the circle join OA.

Step 3: Draw a perpendicular to OA at A.

Step 4:Draw a radius OB making a angle 135

∘

(180

∘

−45

∘

) with OA

Step 5:Draw a perpendicular to OB at B.Let these both perpendicular met at P.

∴PA and PB are the required tangents inclined the angle 45

∘