Unit 9 Review

Sin 150°

• -.7660
• 1.3054
• .5
• -1.3054

Tags

CCSS.HSF.TF.A.2

Cos 45°

• .7071
• 1.412
• -7071
• 5.263

Tags

CCSS.HSF.TF.A.2

Tan 45°

• 1
• -1
• 2
• .5

Tags

CCSS.HSF.TF.A.2

Find the length of the missing side. 

• 17 cm
• 22 cm
• 15 cm
• 13 cm

Tags

CCSS.8.G.B.7

Find the length of the missing side. 

• 20 in.
• 68 in.
• 16 in.
• 80 in.

Tags

CCSS.8.G.B.7

A triangle has side lengths:

20, 21, 28. Is this triangle a right triangle, an acute triangle, or an obtuse triangle?

• right

• acute

• obtuse

• not a triangle

A triangle has side lengths:

4, 8, 14. Is this triangle a right triangle, an acute triangle, or an obtuse triangle?

• right

• acute

• obtuse

• not a triangle

A triangle has side lengths:

5, 8, 6. Is this triangle a right triangle, an acute triangle, or an obtuse triangle?

• right

• acute

• obtuse

• not a triangle

What is the length of u and v in this 30-60-90 triangle?

• u = 8 v = 4√3
• u = 4√2 v = 8
• u = 16 v = 8
• u = 4√3 v = 8

Tags

CCSS.HSG.SRT.C.8

What is the length of y in this 45-45-90 triangle?

• 8√2
• 4√2
• 4
• 8

Tags

CCSS.8.G.B.8