Introduction to Plane Geometry

Which of the following clearly describes BISECTING a line.

• Draw a line through another line.

• Cut the line.

• Cut the line into half.

• Divide the line into a number of equal parts.

Angles can be bisected.

• True

• False

Which of the following clearly describes a PERPENDICULAR line?

• A perpendicular line is 90⁰ to another line.

• A perpendicular line is a straight line.

• A perpendicular line is 45⁰ to another line.

• A perpendicular line is a horizontal line.

Parallel line are not the same distance apart.

• True

• False

To construct a 45^o angle, a _________ angle must be constructed first.

• 30^o

• 90^o

• 45^o

• 75^o

Which of the following angular construction is illustrated above?

• 30^o

• 90^o

• 15^o

• 60^o

The construction above illustrates the method of bisecting a _________ to obtain a ___________?

• 90⁰ , 45⁰

• 60⁰ , 30⁰

• 75⁰ , 35.5⁰

• 30⁰ , 15⁰

The construction shown above depicts the methods of constructing ______________?

• 75^o

• 10^o

• 30^o

• 45^o

The triangle has a total of ___________ degrees.

• 90^o

• 180^o

• 360^o

• 120^o

The altitude of the triangle is the _________.

• The longest side of the triangle.

• Shortest side of the triangle.

• Half the height of the triangle.

• Height of the triangle..