Technical Drawing

Parallel lines are...

• Lines where all their points are equidistant

• Lines where most of their points are equidistant.

• Two or more lines where points never join in one line.

What are complementary angles?

• Two angles which sum is 100º

• Two angles which sum is 90º

• Two angles which sum is 180º

What is a bisector?

• A line that divides one angles into two equals angles.

• A line that divides an angle from the vertex.

• A line that you use to calculate where the vertex is.

Name the different angles in the right order. (Write the three names following this example: 1. Name, 2. Name, 3. Name)

Adjacent angles are....

• Two angles which sum is 90ª

• Two angles which sum is 180º

• Two acute angles together

• Angles that share one side and the vertex.

Complete the definition:

A regular polygon is a polygon where...

How many sides has a nonagon?

• 4 sides

• 5 sides

• 7 sides

• 9 sides

What is the apothem?

• A line segment from the center to the midpoint of one of its sides.

• A perpendicular segment from the center to the midpoint of one of its sides.

• A side from the vertex to the center.

• A minor segment from the center to the midpoint of one of its sides.

According to its sides, name the triangle.

According to its sides, what type of triangle is this?