Question

If the cumference of a
circular sheet is 616 m find
its diambler Also find the area
of the sheet.​

Answer 1

Answer:

88 cm

Step-by-step explanation:

πr2=616

r2=22616×7

r2=28×7

r=14

Therefore, Circumference = 2πr=2×722×14=88 cm

2 Solution

Given : The area of the circle is 616 cm square.

To find : The circumference of the circle ?

Solution :

The area of the circle is A=\pi r^2A=πr2

616=\frac{22}{7}\times r^2616=722×r2  

r^2=\frac{616\times 7}{22}r2=22616×7  

r^2=196r2=196  

r=\sqrt{196}r=196  

r=14r=14  

The radius of the circle is r=14 cm.

The circumference of the circle is C=2\pi rC=2πr

C=2\times \frac{22}{7}\times 14C=2×722×14

C=88C=88

The circumference of the circle is 88 cm.