Day 3 Measuring Segments and Angles

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Presentation transcript:

Day 3 Measuring Segments and Angles

Measuring Segments and Angles Find KN EX: 7 13 KN = distance between K and N or the length of KN = the name of the segment between K and N Find a length or distance on a number line =

Congruent Segments: segments that are the same length.

Segment Addition Postulate: If A, B, and C are collinear and B is between A and C Then AB + BC = AC

Midpoint of a segment On a # line: The midpoint splits the segment in exactly half!

Segment Bisector: A figure that passes through the midpoint of a segment.

Examples: W is between V and X, VW = 3x+5, WX=2x+10 and VX = 50. Find VW.

2. K is the midpoint of . JK = 2x+1 and KL=3x-4. Find JL.

1-4 Measuring Angles Angle: is formed by two rays with the same endpoint. The rays are the SIDES of the angle. The endpoint is the VERTEX of the angle. EX NAMES: <ABC <CBA <1

Angle Addition Postulate

Angle Bisector Is a ray that divides an angle into two angles. ____ bisects _______, therefore_____________

Examples: 1. 2. 3.

HW: Complete the worksheet 1-4