There are: pi*19.5 squared = 1194.591 square inches or about 8.296 square feet rounded to 3 dp
The circumference of a circle with a 39 inch diameter is 122.52 inches.
The circumference of a circle with a diameter of 39 centimeters is about 122.5 cm (C = d x Pi)
Divide 39 by pi to find the diameter of circle 1 and then subtract four inches from your answer to give the diameter of circle 2.Circle 1 = 39/pi = 12.41408556 inchesCircle 2 = 12.41408556 - 4 = 8.41408556 inches
There are about 8.296 square feet rounded to 3 dp
Circumference equals pi times diameter. Therefore you divide 39 by pi and get about 12.41
39 inches / pi = 12.4 inches
Stop getting us to do your homework....
The diameter will be 12.41408556 inches
1 inch = 2.54 cm 39 inch = 39 x 2.54 cm
About 39/1000 of an inch.
Recall that the circumference of a circle is: C = πd where d is the diamater Let d = 39 m. Then: C = 39π m
Area = pi*19.52 = 1194.591 square units rounded to 3 decimal places