Question

17
The sum of the radii of two circles is 140 cm and the
difference of their circumferences is 88 cm. Find the
radii of the two circles.​

Answer 1

Answer:

Step-by-step explanation:

let the radii of 1 circle be r1

ans 2 cirls radiii be r2

=> r1+r2=140

=>r1=140-r2----------------1

let their  circumference be 2pier1 and 2pier2 resp

=> 2*22/7*r1-2*22/7*r2=88----------------2

put the value of eq 1 in eq 2

u will get the ans