Question

Draw a pair of tangents to a circle of radius 4cm which are inclined to each

other at an angle of 70

and write the measure of its length.​

Answer 1

Answer:

Step 1 : Draw a circle of radius 4 cm and with centre as O.

Step 2 : Take a point A on the circumference of the circle and join OA. Draw a perpendicular to OA at point A.

Step 3 : Draw a radius OB, making an angle of 120o=(180o−60o) with OA.

Step 4 : Draw a perpendicular to OB at point B. Let both the perpendiculars intersect at point P. PA and PB are the required tangents at an angle of 60o.