As shown in the figure , the five circles are tangent to one another consecutively and to the lines `L_1 and L_2`. If the radius of the largest circle is 18 and that of smallest is 8. If radius of middle circle is r, then find the value of r/2

As show in the figure , the five circles are tangent to one another consecutively and to the lines L_(1) and L _(2). If the radius of the largest circle is 18 and that of the smaller one is 8, if radius of the middle circle is r, then find the value of r/2.

If the radius of the circle is r then find the area of circle?

The radius of the circle is 14 m. Find the radius of another circle whose area is one. fourth of the area of pervious circle.

If the sum of the areas of two circles with radii R_1 and R_2 is equal to the area of a circle of radius R, then

One circle has a radius of r, and another circle has a radius of 2r. The area of the larger circle is how many times the area of the smaller circle?

If the sum of the areas of two circles with radii R_(1) and R_(2) is equal to the area of a circle of radius R, then

If the sum of the areas of two circles with radii R_(1) and R_(2) is equal to the area of a circle of radius R, then

In the figure AL,BM and BC are the tangents on the circle at point L,M and P respectively. If AB=1cm and /_ABC=60^(@) find the radius of the circle.

In the figure, point P is the centre of the circle and line AB is the tangent to the circle at the point T. The radius of the circle is 6 cm . Find PB, if /_ TPB = 60^(@)