Big Ideas 6 Geometry

Will these line segments form a triangle?

• yes

• no

Which set of side lengths will form a triangle?

• 3, 6, 12

• 7, 7, 14

• 9, 9, 9

• 13, 6, 7

Given are the lengths of two sides of a triangle. Find the range of lengths for the third side. 7 ft, 13 ft

• more than 6 but less than 20
• more than 20 but less than 6
• less than 6 but more than 20

Given are the lengths of two sides of a triangle. Find the range of lengths for the third side. 7 mm, 4 mm

• more than 3 but less than 11
• more than 11 but less than 3
• less than 3 but more than 11

Identify the shortest side measure.

• QP
• QM
• MP

Identify the smallest angle.

• ∠A
• ∠B
• ∠C

The figure is an example of a(n) ...

• altitude 
• perpendicular bisector
• midsegment
• angle bisector

The figure is an example of a(n) ...

• angle bisector
• perpendicular bisector
• median
• midsegment

The figure is an example of a(n) ...

• median
• altitude
• midsegment
• angle bisector

Which of the following describes a median of a triangle?

• A segment that is perpendicular to the side of a triangle at its midpoint.
• A segment with endpoints at the vertex and midpoint of the opposite side.
• A segment that connects two midpoints of two sides.
• A segment that connects the vertex and the opposite side at 90 degrees.