Ch. 9 Quiz

• 45

• 20

• 21

• 41

Tags

CCSS.8.G.B.7

• 52

• 7.2

• 5.7

• 10

Tags

CCSS.8.G.B.7

Do the following side lengths form a triangle?

5, 7, 8

• Yes

• No

Tags

CCSS.7.G.A.2

If ΔQRS, if m∠Q = 30°, what must be the length of QR? (use 30-60-90 rule)

• 14

• 7√2

• 7√3

• 14√3

Tags

CCSS.HSG.SRT.C.8

What type of special triangle is this?

• 45-45-90

• Equiangular

• 30-60-90

• Equilateral

Tags

CCSS.4.G.A.2

A 40-foot-long escalator rises from the first floor to the second floor of a shopping mall. The escalator makes a 30° angle with the horizontal. How high above the first floor is the second floor? (use 30-60-90 rule)

• 20

• 80

• 20√2

• 20√3

Tags

CCSS.HSG.SRT.C.8

Solve for x. (use Trigonometry)

• 23.3

• 15

• 9.2

• 8.3

Tags

CCSS.HSG.SRT.C.8

Solve for x. (use Trigonometry)

• 78.6

• 112.4

• 137

• 130.5

Tags

CCSS.HSG.SRT.C.8

The top of a 20-foot ladder touches a point on the wall 18 feet above the ground. Find, to the nearest

degree, the measure of the angle that the ladder makes with the wall. (use Trigonometry)

• 31

• 25.8

• 24.3

• 12.6

Tags

CCSS.HSG.SRT.C.8

Juanita is standing 20 feet away from a skyscraper in New York when she

measures the angle of elevation to the top of the building as 88.8°. To the

nearest foot, how tall is the building? (use Trigonometry)

• 954.8

• 1208.9

• 670.4

• 543

Tags

CCSS.HSG.SRT.C.8