An angle made with two radii whose vertex is at the center of a circle is the definition of what

congruent central angles

Step-by-step explanation:

A central angle is an angle formed by two radii with the vertex at the center of the circle. In the diagram at the right, ∠AOB is a central angle with an intercepted minor arc from A to B. In a circle, or congruent circles, congruent central angles have congruent arcs.

a) 7x=7

step-by-step explanation:

83-45=38

38 was the other number

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