Math Problem Statement

What is the measure of ∠XYZ?

Solution

To solve for the measure of XYZ\angle XYZ in this problem, let's analyze the information given in the circle diagram.

Solution:

  1. Identify the type of angle:

    • XYZ\angle XYZ is an inscribed angle that intercepts the arc VZVZ.
  2. Apply the inscribed angle theorem:

    • The inscribed angle theorem states that an inscribed angle is half the measure of its intercepted arc. Therefore, if we know the measure of the arc VZVZ, we can find XYZ\angle XYZ.
  3. Determine the measure of arc VZVZ:

    • Since VWZ=33\angle VWZ = 33^\circ and it is also an inscribed angle that intercepts the same arc VZVZ, the measure of arc VZVZ will be twice the measure of VWZ\angle VWZ.
    • So, Measure of arc VZ=2×33=66\text{Measure of arc } VZ = 2 \times 33^\circ = 66^\circ.
  4. Calculate XYZ\angle XYZ:

    • Now, using the inscribed angle theorem again, XYZ=12×66=33\angle XYZ = \frac{1}{2} \times 66^\circ = 33^\circ.

Conclusion:

The measure of XYZ\angle XYZ is 3333^\circ.

Answer:

The correct choice is: A. 33°


Would you like further details on the steps or have any questions?

Here are 5 additional related questions for practice:

  1. How would you find the measure of an angle if it subtends a semicircle?
  2. If XYZ\angle XYZ was a central angle, how would the solution change?
  3. What would be the measure of VWZ\angle VWZ if arc VZVZ measured 100°?
  4. How does the inscribed angle theorem apply to angles intercepting the same arc?
  5. How do you calculate the measure of an arc using multiple inscribed angles?

Tip: Remember that an inscribed angle is always half the measure of its intercepted arc in a circle.

Ask a new question for Free

By Image

Drop file here or Click Here to upload

Math Problem Analysis

Mathematical Concepts

Geometry
Circles
Angles

Formulas

Inscribed angle = 1/2 × intercepted arc

Theorems

Inscribed Angle Theorem

Suitable Grade Level

Grades 9-10