Arc Measures Worksheet
A Grade 10 math worksheet focusing on understanding and calculating arc measures in circles.
Includes
Standards
Topics
Arc Measures Worksheet
Name:
Date:
Score:
Read each question carefully and provide the best answer. Show all your work for full credit.
1. What is the measure of a semicircle?
90 degrees
180 degrees
270 degrees
360 degrees
2. In a circle, if a central angle measures 60 degrees, what is the measure of its intercepted arc?
30 degrees
60 degrees
120 degrees
180 degrees
3. An arc that measures exactly 180 degrees is called a .
4. The measure of an inscribed angle is the measure of its intercepted arc.
5. Consider a circle with center O. If points A, B, and C are on the circle such that arc AB measures 100 degrees and arc BC measures 80 degrees, what is the measure of arc AC?
6. A major arc always measures less than 180 degrees.
True
False
7. In the circle below, chord AB is congruent to chord CD. If the measure of arc AB is 70 degrees, what is the measure of arc CD?