Answer:
20.36
Step-by-step explanation:
The area of the whole circle is pi*3.6^2 = 40.715 (rounded). However, the shaded portion is only half of the circle, since the arc is 180 degrees, so we divide this by 2 to get about 20.36.
Answer:
the missing digit is 7 or 5
Answer:
360000
Step-by-step explanation:
Hello hru
To calculate the radius of a circle by using the circumference, take the circumference of the circle and divide it by 2 times π. For a circle with a circumference of 15, you would divide 15 by 2 times 3.14 and round the decimal point to your answer of approximately 2.39. Be sure to include the units in your answer. Or just 1/2 the diameter :p
Hope this helps!