All you've told us is that 40 cm is less than 1/2 of the circumference.
With that information, all we know is that the circumference is more than 80 cm.
We could calculate it if we knew what the angle is at the center of circle
between the two radii (radiuses) that go to the ends of arc AB. We're
guessing that it's there in your book, but you forgot to include it when
you decided to ask us to do your homework problem for you.
It will be 1/3 of the circle's circumference
I'm assuming that "c" is short for "circumference". The length of an arc is (circumference)*(360/angle). So the length of an arc in a circle with circumference length of 18.84 is 6782.4/angle, where the angle is measured in degrees.
It is: 72-lenghth of major arc = length of minor arc
It is part of the circumference of a circle
Minor arc/Circumference = 150/360 Minor arc = 31.4*150/360 = 13.0833...
It will be 1/3 of the circle's circumference
I'm assuming that "c" is short for "circumference". The length of an arc is (circumference)*(360/angle). So the length of an arc in a circle with circumference length of 18.84 is 6782.4/angle, where the angle is measured in degrees.
It is: 72-lenghth of major arc = length of minor arc
It is part of the circumference of a circle
Minor arc/Circumference = 150/360 Minor arc = 31.4*150/360 = 13.0833...
The circumference of a circle is 360 degrees. The circumference of a circle is also 2*pi*radius or diameter*pi.
If the circumference of the circle is 32 cm, the length of the arc that is 1/4 of the circle is: 8 cm
the fraction of the circle covered by the arc
The total circumference is (arc length) times (360) divided by (the angle degrees)
It depends on what information you do have.
The circumference will have 360 degrees. So the arc is 94/360 of the whole circle. That is, the whole circle will be 360/94 of the arc length. So the circumference of the shole circle is 19.68*360/94 = 75.37 units (to 2 dp)
Find the circumference of the whole circle and then multiply that length by 95/360.