In the adjacent figure, which lines are tangents to the circle ?

In adjacent figure, /_B

In the figure, which circles are congruent to the circle A?

In the given figure, PA and PB are tangent to the circle from an external point P. CD is another tangent touching the circle at Q. If PA=12cm and QC=QD=3cm, then find PC+PD.

In the given figure, Rq is a tangent to the circle with centre O. if SQ = 6cm and QR = 4cm. Then. OR = ……….cm.

In the given figure, BC,BA and AC are tangents to the circle touching the circle at D,E and F respectively. If BD=30cm, CD=7cm and angleA=90^@ , find the radius of the circle.

Name the following parts from the adjacent figure where ‘O’ is the centre of the circle

Find the area of the segment AYB shown in the adjacent figure. It is given that the radius of the circle is 21 cm and /_AOB=120^(0)(Usepi=(22)/(7) and sqrt(3)=1.732 )

In the adjacent figure, there are two concentric circles with centre ‘O’. Chord AD of the bigger circle intersects the smaller circle at B and C. Show that AB = CD.

Two different non-parallel lines meet the circle abs(z)=r . One of them at points a and b and the other which is tangent to the circle at c. Show that the point of intersection of two lines is (2c^(-1)-a^(-1)-b^(-1))/(c^(-2)-a^(-1)b^(-1)) .

Draw a circle of radius 4 cm and take a point P on it. Without using the centre of the circle, draw a tangent to the circle at P.