Question

The circumference of two concertic circles are 176 cm and 132 cm respectively what is
the difference between their radii​

Answer 1

Answer:

Step-by-step explanation:

2πr1=132

=> 2×227×r1=132

=> r1=132×72×22=21metre

Similarly,

2πr2=176  

=> r2=176×72×22=28metre

∴ Difference between their area

= π(r22−r21)=π(r2+r1)(r2−r1)

= 227×49×7=1078sq.metre

FROM===MIYABHAI007

Answer 2

The small circle radius is 21 and the Big circle radius is 28 and the difference between their radii is 28-21=7

The difference between their radii 7