Question

5. The sum of the radius and the circumference of a circle
is 51 cm. The area of the circle is :​

Answer 1

Step-by-step explanation:

Sum of circumference and radius = 51 cm.

Find radius = (?)

→ circumference + radius = 51

∴2πr+r=51

∴r(2π+1)=51

∴r=

2π+1

51

=

2×

7

22

+1

51

=

7

44+7

51

=

51

51×7

∴r=7cm

Answer 2

Hope this answers the question