Given two concentric circles of radii r and 2r, two parallel tangents to the inner circle cut off an arc from the outer circle, find its length.

In the given figure, there are two concentric circles of radii 6 cm and 4 cm with centre O. If AP is a tangent to the larger circle and BP to the smaller circle and the length of AP=8cm , find BP

Draw two concentric circles of radii 3 cm and 5 cm . Construct a tangent to smaller circle from a point on the larger circle . Also measure its length.

In Figure, there are two concentric circles with centre O . P R and P Q S are tangents to the inner circle from point plying on the outer circle. If P R=7. 5 c m , then P S is equal to (a) 10cm (b) 12cm (c) 15cm (d) 18cm

There are two concentric circles such that the area of the outer circle is four times the area of the inner circle. Let A, B and C be three distinct point on the perimeter of the outer circle such that AB and AC are tangents to the inner circle. If the area of the outer circle is 12 square centimeters then the area (in square centimeters) of the triangle ABC would be:

Draw two concentric circles of radii 3 cm and 5 cm . Taking a point on outer circle construct the pair of tangents to the other. Measure the length of a tangent and verify it by actual calculation .

Draw two circles of radii 6 cm and 4 cm. From a point on the outer circle, draw a tangent to the inner circle and measure its length.

There are two concentric circles with centre O. PRT and PQS are tangents to the inner circle. If PR = 5 cm, find the length of PS.

Two concentric circle of radii 3cm and 5cm are given. Find the chord BC which touches the inner circle at P.