Similarity and Trig review

The two right triangles below are similar. What is x, the missing side length in triangle DEF? 

• 3.75
• 9.75
• 10
• 12

Tags

CCSS.HSG.SRT.A.2

Find the missing length indicated.

• 8

• 9

• 25

• 12

Tags

CCSS.HSG.SRT.B.4

Which proportion would be correct in order to solve for x.  (Hint: remember the side splitter theorem states the sides of the triangles are proportional)

• x/10 = 15/30
• x/10 = 45/30
• x/10 = 15/45
• x/10 = 30/15

Tags

CCSS.HSG.SRT.B.4

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

Tags

CCSS.8.G.A.3

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?

• (5,3), (6,2), (1,-2)
• (6,0), (9,-3), (-6,-15)
• (2/3,0), (1,-1/3), (-2/3,-5/3)
• (-1,-3), (0,-4), (-5,-8)

Tags

CCSS.8.G.A.3

Which side is opposite angle x?

• 1
• 2
• 3

What is the correct ratio?

• 7/24
• 24/7
• 7/25
• 24/25

Tags

CCSS.HSG.SRT.C.6

Find x if sin 22^o = 2/x.

• 6.78

• 0.75

• 2.14

• 5.34

Tags

CCSS.HSG.SRT.C.7

Which trigonometric ratio should you use?

• Tangent Ratio

• Sine Ratio

• Cosine Ratio

• Any ratio

Tags

CCSS.HSG.SRT.C.6

Solve for x. Round to the nearest tenth.

• 7.5
• 34.1
• 14.1

Tags

CCSS.HSG.SRT.C.8