A circle with radius `2` is placed against a right angle. A smaller circle is also placed as shown in the adjoining figure. The radius of the smaller circle is:

A circle is drawn in a sectore of a larger circle of radius r, as shown in fugure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the smaller circle is

A circle is drawn in a sectore of a larger circle of radius r, as shown in fugure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the smaller circle is

In the figure below,the triangle is a 3-4-5 sides triangle.Two equal circles are placed as in the figure.The radius of each circle is

The figure shows a quarter circle of radius 2cm in which isinscribed a semi-circle of radius 1cm. A smaller semi-circle isthen inscribed as shown.Find the radius of this smaller semi- circle.

A circle is drawn in a sector of a larger circle of radius r, as shown in the adjacent figure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the small circle is-

A circle is drawn in a sector of a larger circle of radius r, as shown in the adjacent figure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the small circle is-

A circle is drawn in a sector of a larger circle of radius r, as shown in the adjacent figure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the small circle is-

A circle is drawn in a sector of a larger circle of radius r, as shown in the adjacent figure. The smaller circle is tangent to the two bounding radii and the are of the sector. The radius of the small circle is-

In a quadrant of a circle of diameter 4units semicircles are drawn as shown.The radius of the smaller circle (B) is

The adjoining figure shows two circles with the same centre. The radius of the larger circle is 10 cm and the radius of the smaller circle is 4 cm(a) the area of the larger circle (b) the area of the smaller circle (c) the shaded area between the two circles. ( pi = 3.14)