SELF CHECK!

these are the lines that is used to draft the main object.

• bold line

• construction line

• border line

• object line

Is formed when a space is created after two lines meet at one point. It can be measured in terms of degrees.

• lines

• degrees

• triangle

• angle

Angles that are more than 180 degrees.

• isosceles

• reflex

• obtuse

• right

a triangle with two equal sides and angles.

• isosceles

• reflex

• obtuse

• right

A line that touches a circumference of a circle at only one point.

• chord

• diameter

• sector

• tangent

A straight line connecting 2 points in the circumference without passing through the center.

• chord

• diameter

• segment

• tangent

In drafting, Object Lines are drafted lightly.

• TRUE

• FALSE

Which of the figure shows a Chord?

• 
• 
• 
• 

Guess the figure.

• acute angle

• obtuse angle

• complementary angle

• supplementary angle

Draw an object that shows the following elements.

1. Circle

2. Tangent

3. Diameter

4. Chord

5. Sector

Answer explanation