Properties of triangles

How many altitudes can a triangle have?

• one

• two

• three

A _____ connects a vertex of a triangle to the mid-point of the opposite side.

• Altitude

• Median

• Opposite side

If the Pythagoras property holds, the triangle must be _____

• right angled

• acute angled

• obtuse angled

Which is the longest side of a right angle?

• perpendicular

• hypotenuse

• base

The perpendicular line segment from a vertex of a triangle to its opposite side is called an ____ of the triangle.

• altitude

• median

• base

Name the largest angle in this triangle.

• ∠D
• ∠E
• ∠F

Name the smallest angle in this triangle.

• ∠A
• ∠B
• ∠C

Segment DE is ____________.

• an angle bisector
• a perpendicular segment
• a median
• a midsegment 

Segment BH is an example of which of the following?

• Perpendicular Bisector 
• Altitude
• Median
• Midsegment

Which segment is perpendicular to AB?

• FC
• AD
• EB
• AC