Question

Define: a) Radius of the circle (b) Arc of a circle​

Answer 1

Answer:

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Step-by-step explanation:

1. According to classical geometry, the radius of a circle is defined as the equal distance drawn from centre to the circumference of the circle. If we double this distance, then it becomes the diameter of the circle.
2. An arc of a circle is any portion of the circumference of a circle. To recall, the circumference of a circle is the perimeter or distance around a circle. Therefore, we can say that the circumference of a circle is the full arc of the circle itself.

Answer 2

Radius of circle

Radius is line segment starting from center of circle and ends at any point on circumference of circle.

Arc of a circle

An arc of a circle is any portion of the circumference of a circle.

Hope this help you.