Constructing Angle Bisectors

• 38

• 90

• 52

• 128

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CCSS.7.G.B.5

• 4

• -4

• 16

• 28

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CCSS.HSG.CO.C.10

• 10

• 19

• 21

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CCSS.7.G.B.5

• 21

• 32

• 37

• 58

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CCSS.HSG.C.A.3

• 21

• 32

• 37

• 53

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CCSS.HSG.C.A.3

SCULPTURE A triangular entrance way has walls with corner angles of 50°, 70°, and 60°. The designer wants to place a tall bronze sculpture on a round pedestal in a central location equidistant from the three walls. How can the designer find where to place the sculpture?

• Find the circumcenter, where the three perpendicular bisectors meet.

• Find the incenter, where the three angle bisectors meet.

• Draw the perpendicular bisector of the longest side.

• Draw the angle bisector of the greatest angle.

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CCSS.HSG.C.A.3

Find the measure of CP

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CCSS.HSG.CO.C.10

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CCSS.8.G.A.5

Find the measure of QA

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CCSS.HSG.CO.C.11

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CCSS.HSG.C.A.3