To find the circumference of a circle when given the diameter, you can use the formula:
Circumference = π * diameter
Given that the diameter is 7cm and π = 22/7, you can substitute these values into the formula:
Circumference = (22/7) * 7
Simplify the expression by canceling out the common factor of 7:
Circumference = 22
Therefore, the circumference of the circle is 22 cm.
