SAT Math Multiple Choice Question 51: Answer and Explanation

Home > SAT Test > SAT Math Multiple Choice Practice Tests

Test Information

Question: 51


In the figure above, circle O has a radius of 8, and angle XOY measures π radians. What is the measure of minor arc XY ?

  • A. π
  • B. π
  • C. 5π
  • D. 16π

Correct Answer: B


B Because the question wants arc length and gives you the measure of the central angle in radians, you can use the formula s = to find the arc length: s = (8) = π, which reduces to π, which is (B).

Previous       Next