Question

the diameter of a circle is 30 cm . find the circumference to the nearest mm​

Answer 1

Answer:

If the diameter of a circle is 30 cm, then the circumference is 942 mm.

Step-by-step explanation:

1 cm = 10 mm

So, 30 cm = 300 mm

Given: Diameter of circle = 30 cm = 300 mm

Find the circumference

If diameter = 300 mm

The circumference of circle =  π  × d

= 3.14  × 300

= 942 mm

So, the circumference of circle is 942 mm.