14
practice testMultiple Choice

Practice Test

Question 14 • Geometry

Which circle has a central angle that measures 40 degrees ?

Answer
A
Image with description A circle has a center U. X V and X Z are the chords. Angle V X Z is 40 degrees.
B
Image with description A circle has a center U. U Z and U V are the circle's radii. Angle V U Z is 40 degrees.
C
Image with description A circle has a center U. Z V is a chord, and Z X is a tangent line that touches the circle at Z. Angle X Z V is 40 degrees.
D
Image with description A circle has a center U. Z X is a diameter, and V X is a chord. Angle V X Z is 40 degrees.

Explanation

A central angle has its vertex at the center of the circle, and its sides are radii. In choice B, angle VUZ has vertex U, the center, and its sides UV and UZ are radii, so it is the 40-degree central angle.

AI-written and checked against the verified answer.

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