Circles and Trigonometry

What is the correct equation to solve for x ?

• tan (58) = x/11

• tan (58) = 11/x

• cos (58) = x/11

• sin (58) = x/11

• I don't know

Given that m∠AOB = 13π/18 and the radius is 8 cm, what is the length of arc AB?

• 13π/8 cm

• 52π/9 cm

• π/9 cm

• 9π/52

• I don't know

Find the area of the shaded sector of the circle.

• 
• 
• 
• 
• I don't know

What is 150 degrees in radians?

• 5π/6

• 7π/6

• 5π/4

• π/6

• I don't know

Alison is jogging on a circular track that has a radius of 140 feet. She runs along the track from point R to point N, a distance of 230 feet. Find to the nearest degree, the measure of minor arc RN.

• 47

• 74

• 94

• 123

• I don't know

Find the value of y.

• 11√2

• 11

• 22

• (11√2)/2

• I don't know

What is m∠ACB?

• 67.5°
• 90°
• 22.5°
• 45°

What is x?

• 15

• 23

• 2

• 92

Solve for x.

• 37.5

• 11

• 118

• 15

x = (a)