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

Answer each question by selecting the proper alternative from those given below each question so as to make each statement true : If the sum of circumferences of two circles with radii r_(1) and r_(2) is equal to the circumference of a circle of radius r, then ........... holds good.

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

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

Express R_(3) in terms of R_(1) and R_(2) , where the sum of areas of two circles with radii R_(1) and R_(2) is equal to the area of the circle of radius R_(3) .

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 r_1^2 +r_2^2 (a) > r^2 (b) =r^2 (c)

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 r_1^2 +r_2^2 (a) > r^2 (b) =r^2 (c)

Express R_(3) interms of R_(1) and R_(2), where the sum of areas of two circles with radii R _(1) and R_(2) is equal to the area of the circle of radius R_(3).

Write the formula for circumference of circle with radius r.

Write expression for circumference of a circle of radius 'r'