Question

A piece of wire is in the form of rectangle whose length is 18cm and breadth is 15 cm it is cut at a point and bent in the form of circle. find the radius of the circle​

Answer 1

Answer:

If A piece of wire is in the form of a rectangle whose length is 18cm and breadth is 15 cm it is cut at a point and bent in the form of the circle then  

the radius of the circle​ is 10.5 cm.

Step-by-step explanation:

Given :

length = 18 cm

breadth = 15 cm

Formula:

The perimeter of rectangle = 2(l+ b)

= 2(18 + 15) = 66 sq. cm

Now as per given condition

perimeter of rectangle = circumference of the circle

circumference of the circle = 66

2πr = 66

$2 \times \frac{22}{7}\times r = 66$

$\frac{44}{7}\times r = 66\\r = 66 \times \frac{7}{44}\\r = 6\times \frac{7}{4}\\r = 10.5$

So the radius of the circle is 10.5 cm

Answer 2

Answer:

10.5 cm

Step-by-step explanation:

no step by step explanation