Similarity Problems

Similar or not?

• Similar

• Not similar

Answer explanation

These triangles are not similar because the sides are not equally scaled

Tags

CCSS.HSG.SRT.A.2

Similar or not?

• Similar

• Not similar

Answer explanation

While these shapes have the same sides, the angles are not same

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Similar or not?

• Similar

• Not similar

Answer explanation

These figures are similar because the sides have all been scaled equally and the angles didn't change from one figure to the other

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Similar or not?

• Similar

• Not similar

Answer explanation

The sides were not scaled equally

Tags

CCSS.HSG.SRT.A.2

True or false?

Two equilateral triangles are similar

• True

• False

Answer explanation

Must be true. Dilate the first triangle using any center by a scale factor that is the ratio of the length of sides of the second triangle to the length of the sides of the first. Then apply the Angle-Side-Angle Triangle Congruence Theorem

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Select ALL true statements given that angle AED is congruent to angle ABC

Tags

CCSS.HSG.CO.C.9

An equilateral triangle and a square are similar

• True

• False

Answer explanation

Definitely can't be true. Rigid motions and dilations both take line segment to line segments, so the image of a polygon must have the same number of sides.

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Triangles ABC and DEF are similar and measurements as shown. What is the measure of EF?

• 21/2

• 15/2

• 9/2

• 3/2

Tags

CCSS.HSG.SRT.A.2

Identify the similar triangles. Find x.

Tags

CCSS.HSG.SRT.A.2

Triangles ABC and EFG are similar with measurements as shown. What is the ratio of AC/EG?

• 1/2

• 5/7

• 7/10

• 7/9

Tags

CCSS.HSG.SRT.A.2