Exploring Perpendicular and Angle Bisectors in Geometry

The video tutorial covers the concepts of perpendicular and angle bisectors in geometry. It begins with definitions and properties of bisectors, followed by detailed explanations and examples of perpendicular bisectors, including their applications in real-world scenarios like roof trusses. The tutorial then transitions to angle bisectors, explaining their properties and how they divide angles into equal parts. Throughout the video, the instructor solves various problems using algebra to find unknown values, reinforcing the understanding of bisectors and their applications in geometry.

What does the term 'bisector' mean in geometry?

• To cut into unequal parts

• To cut into three equal parts

• To cut into four equal parts

• To cut into two equal parts

Tags

CCSS.HSG.CO.A.1

If CD is a perpendicular bisector of AB, what can be said about AD and BD?

• AD is half of BD

• AD is unrelated to BD

• AD is equal to BD

• AD is twice BD

Tags

CCSS.HSG.CO.C.9

In the context of a roof truss, if AC is equal to BC, what does this imply about the roof?

• The roof is shorter on one side

• The roof is asymmetrical

• The roof is congruent on both sides

• The roof is taller on one side

Tags

CCSS.8.G.A.2

What is the value of x if 72 equals 6x?

• x = 12

• x = 16

• x = 10

• x = 14

Tags

CCSS.8.G.A.5

If RS is 41 and the equation is 4x + 5, what is the value of x?

• x = 11

• x = 9

• x = 10

• x = 8

Tags

CCSS.4.MD.A.2

What does an angle bisector do?

• Cuts an angle into four equal parts

• Cuts an angle into three equal parts

• Cuts an angle into unequal parts

• Cuts an angle into two equal parts

Tags

CCSS.HSG.CO.C.9

If BD is congruent to CD in an angle bisector, what can be said about the triangles formed?

• The triangles are not congruent

• The triangles are congruent

• The triangles are similar

• The triangles are different

Tags

CCSS.HSG.CO.C.9

What is the value of x if 5x equals 35?

• x = 8

• x = 6

• x = 5

• x = 7

Tags

CCSS.6.EE.B.7

If two sides are congruent and share a side, what can be said about the angles?

• The angles are complementary

• The angles are congruent

• The angles are supplementary

• The angles are not congruent

What is the value of x if 30 equals 3x?

• x = 10

• x = 9

• x = 11

• x = 8

Tags

CCSS.3.MD.A.2