Video tutorials - Circles Examples and Solutions Mathematics CBSE

In Figure 6, three circles each of radius 3.5 cm are drawn in such a way that each of them touches the other two. Find the area enclosed between these three circles (shaded region). `[Use pi=22/7]`

A chord of a circle of radius 14 cm subtends an angle of 120° at the centre. Find the area of the corresponding minor segment of the circle. `[User pi22/7 and sqrt3=1.73]`

In Figure 3, a circle touches all the four sides of a quadrilateral ABCD whose sides are AB = 6 cm, BC = 9 cm and CD = 8 cm. Find the length of the side AD.

The perimeter (in cm) of a square circumscribing a circle of radius a cm, is

In figure 1, O is the centre of a circle, PQ is a chord and PT is the tangent at P.

If ∠POQ = 70°, then ∠TPQ is equal to

The circumference of a circle is 22 cm. The area of its quadrant (in cm²) is

A quadrilateral ABCD is drawn to circumscribe a circle. Prove that AB + CD = AD + BC ?

In Fig. 5, the chord AB of the larger of the two concentric circles, with centre O, touches the smaller circle at C. Prove that AC = CB.