Segment Additions

Geo 1.2 -- Segment Addition Postulate

Dr. Tom Giles

Lesson: Segment Addition Postulate

Example 1

• CA + AT = CT

• 2 + 10 = CT

• CT = 12

Mid point

• The midpoint is EXACTLY HALF of the segment

• CB = BA

• 10 + 10 = CA

• CA = 20

Bisect

• Bisect means to split in half (think mid point)

• YX = XZ

• XZ = 5

Solving an equation

Multiple Choice

If GH = 8 and HI = 17, Find GI

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• 9

• 24

• 25

Multiple Choice

If JK = 7 and
LJ = 20, find KL

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• 27

• 28

Multiple Choice

Use the figure to write and solve an equation for x.

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Multiple Choice

What does the word BISECT mean?

• To cut something into more than five pieces.

• It is a plane with two sets of wings.

• A shape that has three sides.

• To cut something into two congruent pieces or in half.

Multiple Choice

If T is the midpoint of SU, find x.

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