CCSS.Math.Content.HSG.SRT.A.2

Are the triangles similar?

• Not similar.
• Yes, similar by AA.
• Yes, similar by SAS.
• Yes, similar by SSS.

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CCSS.Math.Content.HSG.SRT.A.2

A tree is 12 feet tall and casts a shadow 9 feet long. A building nearby casts a shadow that measures 21 feet. How tall is the building? (Draw a picture, set up a proportion)

• 16 ft.
• 24 ft.
• 21 ft.
• 28 ft.

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CCSS.Math.Content.HSG.SRT.A.2

The red triangle has been dilated by a scale factor of 1/4, which triangle is it's new image? 

• green triangle 
• red triangle 
• black triangle
• none of these 

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CCSS.Math.Content.HSG.SRT.A.2

Complete each proportion.
CB / DM  =  AC / ?

• BM
• MA
• BC
• AD

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CCSS.Math.Content.HSG.SRT.A.2

A figure is multiplied by the scale factor 1/4. What will be the change in area?

• The area will be 1/4 the original area.
• The area will be 1/8 the original area.
• The area will be 1/16 the original area.

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CCSS.Math.Content.HSG.SRT.A.2

A dilation produces a similar figure.

• True
• False

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CCSS.Math.Content.HSG.SRT.A.2

Determine if the following triangles are similar

• Yes, Δ ABC is similar to Δ FGH by SSS Similarity

• Yes, Δ ABC is similar to Δ GHF by SSS Similarity

• Yes; Δ ABC is similar to Δ FGH by SAS Similarity

• No; The corresponding sides are not proportional.

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CCSS.Math.Content.HSG.SRT.A.2

Tell whether the triangles are similar or not.

• a

• b

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CCSS.Math.Content.HSG.SRT.A.2

The triangles are similar by...

• SAS
• AA
• ASA
• SSS

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CCSS.Math.Content.HSG.SRT.A.2

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

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CCSS.Math.Content.HSG.SRT.A.2