LHS Geo B Exam Review

The measure of a(n) ______ is equal to the measure of its intercepted arc.

• central angle

• inscribed angle

• exterior angle

• supplementary angle

The measure of a(n) ______ is half the measure of its intercepted arc.

• central angle

• inscribed angle

• exterior angle

• supplementary angle

If AC and BE are diameters, what is the measure of Arc EC?

• 100°

• 80°

• 60°

• 130°

Find the value of x, y, z, and the measure of arc AB in that order.

• x= 82

  y= 90

  z= 95

  Arc AB = 70

• x= 82

  y= 98

  z= 87

  Arc AB = 80

• x= 82

  y= 94

  z= 83

  Arc AB =80

• x= 110

  y= 65

  z= 85

  Arc AB =70

Find measure of angle BAC in circle O

• 237°

• 77°

• 51.5°

• 277°

You just bought a new car. It has tires on it with a 20” diameter. If your tires are rotating 300°, how far, to the nearest inch, is the nail in your tire traveling?

• 52 inches

• 17 inches

• 15 inches

• 10 inches

A windshield wiper that has a radius of 16 inches swipes at an angle of 130 degrees. What sector area is cleared by the windshield wiper?

• 200 square inches

• 185 square inches

• 290 square inches

• 260 square inches

A circle has a radius of 28mm. What central angle would create a sector with an area of 732.6 square mm?

• 117 degrees

• 77 degrees

• 97 degrees

• 107 degrees

What is the formula for the Pythagorean Theorem?

In a right triangle, what is the sine of angle θ defined as?