Similar Triangles

What is the slope of the line shown by the similar triangles in the graph?

• -4/3 = -8/6 = /4/3

• -4/-3 = -8/-6 = 4/3

• 3/-4 = 6/-8 = -3/4

• 3/4 = 6/8 = 3/4

Tags

CCSS.8.EE.B.6

Triangles ABC and A'B'C' are shown in the coordinate plane.

Which statement describes a sequence of transformations that can be used to verify that triangle A'B'C' is similar to triangle ABC?

• Reflect triangle ABC across the x-axis, followed by a dilation with a scale factor of 2 about the origin.

• Reflect triangle ABC across the y-axis, followed by a dilation with a scale factor of 1/2 about the origin.

• Reflect triangle ABC across the x-axis, followed by a dilation with a scale factor of 1/2 about the origin.

• Reflect triangle ABC across the y-axis, followed by a dilation with a scale factor of 2 about the origin.

Tags

CCSS.8.EE.B.6

Are the triangles similar?

• Yes
• No

Tags

CCSS.HSG.SRT.A.2

Which is NOT true about similar triangles.

• The angles in the triangles are congruent to each other.
• The sides are proportional to each other.
• The angles in each triangle add up to 180^o.
• The triangles must have at least one side that is the same length.

Tags

CCSS.HSG.SRT.A.2

Are the triangles similar?

• Yes
• No

Tags

CCSS.HSG.SRT.A.2

How long is side x?

• 3
• 1.5
• 8
• 2/3

Tags

CCSS.HSG.SRT.A.2

Which triangles are similar to triangle A?

• B
• C
• Both
• None

Tags

CCSS.HSG.SRT.A.2

Find side length X.

• 30
• 25
• 15
• 40

Tags

CCSS.HSG.SRT.A.2

What does it mean for two shapes to be similar?

• Same shape, but different size.
• Same size and same shape.
• Their angles add up to 180^o.
• They are congruent.

How do these triangles appear to be similar?

• AA
• SAS
• SSS
• Not Similar