Unit 4 - Similarity

Which of the following methods can NOT be used to prove similarity?

• AA similarity
• SAS similarity
• SSS similarity
• HL similarity

Tags

CCSS.HSG.SRT.B.5

When two triangles are similar, the corresponding angles are ...

• congruent.
• doubled.
• in proportion.
• cut in half.

When triangles are similar, the corresponding sides are ...

• congruent.
• in proportion.
• doubled.
• cut in half.

Tags

CCSS.HSG.SRT.A.2

What happens to a figure when it is dilated by a scale factor of r >1?

• The image stays the same.
• The image gets bigger.
• The image gets smaller.
• The image goes away.

Find the measure of the exterior angle in the following picture:

• 50°
• 60°
• 110°
• 180°

In the following diagram, there are parallel lines cut by a transversal.  Find the m∠1.

• 45°
• 135°
• 180°
• 360°

In a triangle, three medians meet at a point called the ...

• incenter.
• circumcenter.
• orthocenter.
• centroid.

What is the scale factor that maps point A (8, -12) onto point B (6, -9)?

• 4/3
• 3/4
• -4/3
• -3/4

A median of a triangle is formed when ...

• you connect the midpoint of a side to the opposite vertex.
• you connect the vertex to the opposite side at a right angle.
• you connect the midpoint of one side of the triangle to the midpoint of the other side of the triangle.
• you bisect the vertex angle.

The following diagram shows the construction for creating the __________ of a triangle.

• angle bisector
• median
• altitude
• perpendicular bisector