Perpendicular Bisectors Theorem

If DA is the perpendicular bisector or EI, then

• <IAD and <DAE are right angles

• DI=DE

• EA=IA

• All of the above

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CCSS.HSG.CO.C.9

Solve for the value of x.

• x = 10

• x = 20

• x = 3

• x = 45

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CCSS.HSG.CO.C.9

• AD = 12, BC = 5

• AD = 12, BC = 16

• AD = 5, BC = 12

• AD = 12, BC = 8

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CCSS.HSG.CO.C.10

What is the length of DC

• 4

• 1

• 2

• 3

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CCSS.HSG.CO.C.9

Use the Perp Bisector Theorem to DC (hint...find x first and then plug it back in to DC)

Mathematical Equivalence

ON

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CCSS.HSG.CO.C.9

Find x, then the measure of JK

• x=10, JK=50

• x=10, JK=100

• x=15, JK=100

• x=15, JK=50

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CCSS.HSG.CO.C.10

• JM = 5

• JM = 10

• JM = 12

• JM = 24

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CCSS.HSG.CO.C.10

• QR = 4

• QR = 20

• QR = 11

• QR = 5

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CCSS.HSG.CO.C.10

Select every true statement below.

• BC = 10 ft.

• AD = 36 ft.

• BE = 10 ft.

• DE = 36 ft.

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CCSS.HSG.CO.C.9

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CCSS.HSG.CO.C.9