Topic 9 Similar Triangles Pythagorean Thm, Trig

Is the dilation an enlargement or a reduction?

• Enlargement
• No change
• Reduction

Tags

CCSS.8.G.A.3

Which one is the pre-image? The image? How do you know?

Match them up

• second and has primes

• The image comes

• first and has no primes

• The preimage

• A'B'C'

• The image

• ABC

• The preimage comes

Tags

CCSS.HSG.CO.A.2

What is the scale factor?

Tags

CCSS.HSG.CO.A.2

What are the coordinates of the dilated quadrilateral RSTV using a scale factor of 3 and the origin as the center of dilation?

• S'

• V'

• R'

• T'

Tags

CCSS.8.G.A.3

What are the new coordinates of a figure dilated by 1/3? Is that a reduction or an enlargement?

• reduction

Tags

CCSS.8.G.A.3

How do I know these triangles are similar?

Remember, it is a bowtie!

• The triangles are similar by SSS similarity.
• The triangles are not similar at all.
• The triangles are similar by AA similarity.
• The triangles are similar by SAS similarity.

Tags

CCSS.HSG.SRT.B.5

How do I know these triangles are similar?

• The triangles are similar by SSS similarity.
• I do not know these triangles are similar

• The triangles are similar by AA similarity.
• The triangles are similar by SAS similarity.

Tags

CCSS.HSG.SRT.B.5

How do I know these triangles are similar?

There are 2 ways

• The triangles are similar by SSS similarity.
• The triangles are not similar at all.
• The triangles are similar by AA similarity.
• The triangles are similar by SAS similarity.

Tags

CCSS.HSG.SRT.B.5

To find the height of the tree you must create a proportion using your words. Which one would work?

Tags

CCSS.HSG.SRT.B.5

Tags

CCSS.HSG.SRT.B.5