In a circle d = 10.2 cm , then r = ……………cm .

In a circle d = 28 cm then A=____ cm^2

The diameter of a circle is 10.2 cm then its radius is ….. Cm .

In a cone, r=7 cm, h=10 cm then l= ……….. cm.

In a cone, d = 14 cm, l = 10 cm then CSA = …………. cm^(2) .

In a circle r =14 cm then area of Quadrant circle is_________ cm^2 .

If diameter of a circle is 2r cm, then area of the circle is :

In a circle d = 7 cm then its area is_________ cm^2

Q.46 A square ABCD is inscribed in a circle and AB=4cm, then radius of the circle is: (A)2cm(B)2/2cm(C)4cm(D)412cm

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

If diameter of a circle is r cm, then the area of a circle is :