Construction of Triangles

What is the name of this tool?

• Protactor

• Compass

• Trasportador

• El Compa

To construct an equilateral triangle, all you need is a compass and a straightedge.

• True

• False

AB = 8   BC = 10  AC = ?

• 18

• 19

• 17

• 20

What construction is this?

• Angle bisector

• Copying an angle

• Parallel lines

• Copying a segment

• Perpendicular bisector

• m∠C < m∠E
• m∠E > m∠D
• m∠D < m∠C
• m∠E > m ∠C

Name the construction.

• Angle bisector

• Perpendicular line to a point not on a line

• Angle median

• Perpendicular bisector of a line segment

Which one is the correct construction for a perpendicular bisector?

• 1

• 2

• 3

• 4

Which of the following is not a criterion for the construction of a triangle?

• SAS

• ASA

• AAA

• SSS

A triangle can be constructed only when the sum of the length of any two........... is always more than the..............side.

A triangle can be constructed with sides 7.7cm,6.8 cm and 12 cm using -------------------- criterion.