Draw a circle of radius 3 cm. Take two points P and Q on one of its extended diameter each at a distance of 7 cm from its centre. Draw tangents to the circle from these two points P and Q.
Given that
Construct a circle of radius
, and 
extended diameter each at distance of 7cm from its centre. Construct the pair of tangents to the circle from these two points 
.
We follow the following steps to construct the given
Step of construction
Step: I- First of all we draw a circle of radius
.
Step: II- Make a line CD 
.
Step: III-Extend the line CD in such a way that point 
Step: IV- CP at a distance of
, and join 
draw a right bisector of, intersecting at R.
Step V:- Similarly, DQ at a distance of
, and join 
draw a right bisector of, intersecting at S.
Step VI: Taking R and S as centre and radius
, draw a circle to intersect the given circle at T and T’
B and B ’respectively.
Step: VII- Joins PT and PT’ as well as QB and QB’ to obtain the require tangents.
Thus, 
are the required tangents.
Given that
Construct a circle of radius, and extended diameter each at distance of 7cm from its centre. Construct the pair of tangents to the circle from these two points .
We follow the following steps to construct the given
Step of construction
Step: I- First of all we draw a circle of radius.
Step: II- Make a line CD .
Step: III-Extend the line CD in such a way that point
Step: IV- CP at a distance of, and join draw a right bisector of, intersecting at R.
Step V:- Similarly, DQ at a distance of, and join draw a right bisector of, intersecting at S.
Step VI: Taking R and S as centre and radius, draw a circle to intersect the given circle at T and T’
B and B ’respectively.
Step: VII- Joins PT and PT’ as well as QB and QB’ to obtain the require tangents.
Thus, are the required tangents.
