Segment Postulates

Write an equation that correctly models the lengths shown.

• 3x + 2 + 6 = 2x - 2

• 2x - 2 + 6 = 3x + 2

• 6 - 3x - 2 = 2x - 2

• 2x + 2 + 3x + 2 = 6

Use Segment Addition Postulate to write and equation and solve for x.

• 5

• 7

• 14

• 21

Answer explanation

Segment Addition Postulate

AB + BC = BC

2x + 3x + 5 = 40

5x + 5 = 40

5x = 35

x = 7

Find the length indicated.

Tags

CCSS.2.MD.B.5

Find the length indicated.

• False

• True

Tags

CCSS.4.G.A.1

Write an equation that correctly models the lengths shown.

• 2x + 20 + x + 21 = 9

• 2x + 20 + 9 = x + 21

• 9 + x + 21 = 2x + 20

• 2x + 20 - 9 = x + 21

Tags

CCSS.4.MD.A.2

Part of a line that has a beginning and an end is called a...

• ray

• plane

• angle

• line segment

Tags

CCSS.HSG.CO.A.1

Example 2: Find x if the length of PR is 45 units in length. [Refer to the figure]

• 3

• 44

• 5

• 6

Tags

CCSS.4.MD.A.2

Suppose AC =  48, find the value of x. Then, find the length of AB.

• 13

• 16

• 12

• 15

Find measurement for QT.

• 10

• 6

• -10

• 2

Tags

CCSS.7.NS.A.1C