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An arc is part of a circle An arc is part of a circle A C B An arc is part of a circle so the curved line between AB would be abbreviated A C B An arc is part of a circle so the curved line between AB would be abbreviated AB A C B An arc is part of a circle so the curved line between AB would be abbreviated AB A with a curve over it. C B An arc is part of a circle so the curved line between AB would be abbreviated AB ͡ A with a curve over it. C B Each arc has two descriptions Each arc has two descriptions A C B Each arc has two descriptions An arc measurement A C B Each arc has two descriptions An arc measurement A 80o C B Each arc has two descriptions An arc measurement A 80o 100o C B Each arc has two descriptions An arc measurement, and an arc length A 80o 100o C B Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in Arc measurement is in degrees Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in Arc measurement is in degrees Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in Arc measurement is in degrees Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in Arc measurement is in degrees Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in arc length is in any unit of distance Arc measurement is in degrees Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in arc length is in any unit of distance Arc measurement is in degrees Each arc has two descriptions radius = 1 in An arc measurement, and an arc length A 1.4 in 80o 100o C B 1.7 in arc length is in any unit of distance Arc measurements for the whole circle must equal 360o A 80o 100o C B Arc measurements for the whole circle must equal 360o 360 - 80 - 100 A x 80o 100o C B Arc measurements for the whole circle must equal 360o 360 - 80 - 100 = 180 A x 80o 100o C B Arc measurements for the whole circle must equal 360o 360 - 80 - 100 = 180 A x 80o 100o C B arc measurement arc length unit of distance ? degrees ? Which of the following is a unit of distance? degree second meter feet hours grams pounds inches If an angle has its vertex on the center of the circle If an angle has its vertex on the center of the circle If an angle has its vertex on the center of the circle vertex on center If an angle has its vertex on the center of the circle then the angle measurement If an angle has its vertex on the center of the circle then the angle measurement 45o If an angle has its vertex on the center of the circle then the angle measurement is equal to the arc measure 45o If an angle has its vertex on the center of the circle then the angle measurement is equal to the arc measure 45o 45o a c Which angle has its vertex on the center? b d a b c d Find the angle measurements: 100o 60o 170o Find the arc measurements: 100o 60o 170o If the vertex of the angle is ON the circle If the vertex of the angle is ON the circle If the vertex of the angle is ON the circle vertex on the circle If the vertex of the angle is ON the circle then the arc measure If the vertex of the angle is ON the circle then the arc measure 40o If the vertex of the angle is ON the circle then the arc measure is divided by 2 to get the 40o angle measure If the vertex of the angle is ON the circle then the arc measure is divided by 2 to get the 40o 20o angle measure Find the angle measures: 40o 200o 90o Find the arc measures: 20o 100o 45o An angle with the vertex ON the circle can also look like this An angle with the vertex ON the circle can also look like this An angle with the vertex ON the circle can also look like this vertex on the circle Find the angle measures 120o 200o Vertex ON center Vertex ON circle angle = arc/2 ? angle = arc ? The vertex of an angle can be INSIDE the circle The vertex of an angle can be INSIDE the circle The vertex of an angle can be INSIDE the circle vertex INSIDE the circle The vertex of an angle can be INSIDE the circle but NOT on the center The vertex of an angle can be INSIDE the circle but NOT on the center Center The vertex of an angle can be INSIDE the circle but NOT on the center Center not center To find the angle, To find the angle, To find the angle, add the arc of the angle To find the angle, add the arc of the angle 160o To find the angle, add the arc of the angle and the arc opposite that arc 160o To find the angle, add the arc of the angle and the arc opposite that arc 160o 40o To find the angle, add the arc of the angle and the arc opposite that arc add those arcs and divide by 2 160o 40o To find the angle, add the arc of the angle and the arc opposite that arc add those arcs and divide by 2 160o 40o 160 + 40 = 200 To find the angle, add the arc of the angle and the arc opposite that arc add those arcs and divide by 2 160o 40o 160 + 40 = 200÷2= To find the angle, add the arc of the angle and the arc opposite that arc add those arcs and divide by 2 160o 40o 160 + 40 = 200÷2= 100 Find the angle measures 6o 10o 100o 10o IN the circle ? Where is the vertex for each angle? ON the center ? ON the circle ? If the vertex of the angle is OUTSIDE the circle If the vertex of the angle is OUTSIDE the circle If the vertex of the angle is OUTSIDE the circle vertex OUTSIDE circle If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle 105o If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle 105o 35o If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle then divide by 2 105o 35o If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle then divide by 2 105o 35o 105 - 35 If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle then divide by 2 105o 35o 105 - 35 = 70 If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle then divide by 2 105o 35o 105 - 35 = 70 ÷ 2 If the vertex of the angle is OUTSIDE the circle subtract the two arcs inside the angle then divide by 2 105o 35o 105 - 35 = 70 ÷ 2 = 35o Find the angle measures 200o 60o 180o 70o 260o 260o 100o |