Question

The sum of diameters of two circles is 14 cm and the difference of their circumferences
is 8 cm. Find the circumference of two circle.​

Answer 1

Answer:

let two circles 1 and 2 with the radius r and R

Diameter of a circle = 2×Radius of circles

according to the question:

2×R +2×r=14

so,

R+r=7

R=7-r.....

and,

Circumference of circles = 2×π×Radius

where π=22/7

so, 2πR-2πr=8

R-r=8/2π

......

7-r-r=8/2π

7-2r=4/π

and 2πr=18cm

and 2πR=8+2πr

=8+18

=26cm

Answer 2

Answer:

See the correct answer