If the sum of the areas of two circles with radii R1 and R2 is equal to the area ofa circle of radius R, then(A) R1 + R 2 = R (B) 21R + 22R = R 2(C) R1 + R 2 < R (D) 2 2 21 2R R R

the sum of the areas of two circles with radii R1 and R2 is equal to the area ofa circle of radius R, then

Two equal circles of radius r intersect such that each passes through the centre of the other. The length of common chord of the circles is

Information about three circles is listed below.Circle P has a radius of 26 cm.Circle Q has a diameter of 52 cm.Circle R has a radius of 52 cm. Based on the information, which statement is true?  A.  The area of Circle Q is larger than the area of Circle R.  B.  The area of Circle P is the smallest of all three circles.  C.  The circumference of Circle Q is the same as Circle R.  D.  The circumference of Circle Q is the same as Circle P.

(i) Area enclosed by two concentric circles with radius R and r respectively such that R > r is π(R2 – r2).(ii) The length of tangents drawn from an external point to a circle are not equal.(iii) There is one and only one tangent at any point on the circumference of a circle.(iv) Ratio of the area of the sector of a circle with central angle 90° to the area of that circle is 1 : 4.A (i)-F, (ii)-F, (iii)-F, (iv)-F B (i)-F, (ii)-T, (iii)-F, (iv)-F C (i)-T, (ii)-F, (iii)-T, (iv)-T D (i)-T, (ii)-T, (iii)-T, (iv)-T

The area of circle A is equal to the sum of the area of two small circles with diameters of 6cm and 8cm. Then the diameter of circle A will be? 5 10 15 20