Intro to Similarity

How many pairs of congruent angles in 2 triangles are needed to prove the 2 triangles are similar?

• 2 or 3

• 1

• 0

• only 3

Tags

CCSS.HSG.SRT.B.5

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Sides in similar figures must be proportional.  

• True

• False 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Mrs. Ashley used similar triangles to make a design.  Which statement about the triangles in the design must be true?

• They are the same size and shape.

• They are the same size but different shapes.

• They have corresponding angles that are congruent.

• They have corresponding sides that are congruent.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

All corresponding angles in similar figures are congruent.  

• True

• False

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

The 2 triangles are similar. Write a similarity statement.

Tags

CCSS.HSG.SRT.A.2

The polygons are similar. Find the value of the missing side.

Tags

CCSS.HSG.SRT.A.2

The 2 polygons are similar. Find the value of the missing side.

Tags

CCSS.HSG.SRT.A.2

Solve for x. The triangles are similar.

Tags

CCSS.HSG.SRT.A.2

The polygons are similar. Find the scale factor of the smaller figure to the larger figure. (write your answer in a:b format)

Tags

CCSS.HSG.SRT.A.2

CCSS.8.G.A.4