the circumference ... 2 pi r
Congruent Arcs
Parallel lines intercept congruent arcs on a circle. More explanation: Parallel lines never interSECT but they can interCEPT Congruent arcs means that the two arcs would have the same measure of the arcs.
An arc is a portion of the circumference of a circle, and the circumference of a circle is the distance round a circle. So an arc looks like a semicircle, it is part of the circumference. Arcs are often used in constructions, for example if you were asked to draw an angle of 60 degrees without a protractor you would draw arcs following a special method. Arcs are drawn using a tool called a pair of compasses.
Congruent segments will depend on the radius, and whether the segments are straight lines or arcs.
same circle or congruent circles
½ the sum of the intercepted arcs.
Yes, there can be congruent arcs on a circle. Arcs which subtend the same angle at the center are considered as congruent.
It measures half the sum of the arcs it intercepts.
Circles have infinitely many arcs, not just 3.
Congruent Arcs
Adjacent Arcs
Half of the circle is an arc
If two chords intersect inside a circle, the acute angle they form is one half of the sum of the arcs intercepted by its sides and by the vertical angle SO... The acute angle will be one half the sum of the two arcs. So it is 1/2(42+94)=68 degrees.
No
Diameter
Because they are parts of the circumference of a circle
The sum of all percentages (in a circle graph or anywhere else) is 100%, which by definition is the totality of whatever it is that you are discussing.