Problem: A 44cm long wire is bent to form a circle. Find the diameter of the circle.

Solution:
To find the diameter of the circle, we need to use the formula for the circumference of a circle, which is:
C = 2πr, where C is the circumference and r is the radius of the circle.

We know that the wire is bent to form a circle, so the length of the wire is equal to the circumference of the circle, which is 44cm.

Step 1: Find the value of π
π is a mathematical constant that represents the ratio of the circumference of a circle to its diameter. It is approximately equal to 3.14.

Step 2: Find the radius of the circle
We can use the formula for the circumference of a circle to find the radius:
C = 2πr
44 = 2πr
r = 44/2π
r = 7 cm (approx)

Step 3: Find the diameter of the circle
The diameter of the circle is twice the radius:
D = 2r
D = 2 x 7
D = 14 cm

Therefore, the diameter of the circle is 14 cm.

Conclusion:
The diameter of the circle is 14 cm. We used the formula for the circumference of a circle and the given length of the wire to find the radius of the circle. Finally, we found the diameter of the circle by multiplying the radius by 2.

It's diameter is 14cm.