Geometry

circum. = pi x diameter :)

26.17

the measure of the inscribed angle is______ its corresponding central angle

95.10

The length of arc ACB is 57.2.

66

For A+ =31.40

2x(22/7)x1x5 =31.43 ft.

5.23

41.87

Any variables to help us out? What points are ABC? Why are there three points for a curved line (something that has two points)?

The radius is exactly 1/2 of the diameter.

.385

55

8x+40

5.23

Since the minor arc is 30 degrees, the major arc is 330 degrees (360 - 30).

So we have:

330 degrees : arc length 10

30 degrees : arc length x

330/30 = 10/x

11/1 = 10/x

x = 10/11

x = 0.9 approximately

So the length of the minor arc is approximately 0.9 units.

arc length/circumference=central angle/360

1/9=central angle/360

central angle=40

That depends on what x is: a leg, an angle, what?

32 degrees

21 degrees

find the area of the shaded sector 12cm and 24°

19.23

Find the area of the shaded sector. radius of 3 ...A+ = 7.07

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)

Arc length = pi*r*theta/180 = 17.76 units of length.

13.08

An arc can be measured either in degree or in unit length. An arc is a portion of the circumference of the circle which is determined by the size of its corresponding central angle. We create a proportion that compares the arc to the whole circle first in degree measure and then in unit length.

(measure of central angle/360 degrees) = (arc length/circumference)

arc length = (measure of central angle/360 degrees)(circumference)

But, maybe the angle that determines the arc in your problem is not a central angle. In such a case, find the arc measure in degree, and then write the proportion to find the arc length.

find the arc length of minor arc 95 c=

18.84

The answer depends on what the measures refer to.

It is found by: (sector area/entire circle area) times 360 in degrees

An arc length of 120 degrees is 1/3 of the circumference of a circle