Geometry Circles & Arcs

Question 1

What is the center of a circle?

Accepted Answer

The point equidistant from all points on the circle

Answer

A point on the edge.

Answer

The outermost point.

Answer

A point outside the circle.

Question 2

What is the radius of a circle?

Accepted Answer

The distance from center to edge

Answer

The distance across the circle.

Answer

The length around the circle.

Answer

The longest chord.

Question 3

What is a diameter?

Accepted Answer

A line through the center connecting two points on the circle

Answer

A line inside the circle not touching the center.

Answer

A line outside the circle.

Answer

A curve inside the circle.

Question 4

What is the relationship between radius and diameter?

Accepted Answer

Diameter is twice the radius

Answer

Diameter is half the radius.

Answer

Diameter equals the radius.

Answer

Diameter is unrelated to the radius.

Question 5

What is a chord in a circle?

Accepted Answer

A segment connecting two points on the circle

Answer

A line outside the circle.

Answer

A line that touches the circle at one point.

Answer

The outer edge of the circle.

Question 6

What is an arc?

Accepted Answer

A part of the circumference between two points

Answer

A line through the circle.

Answer

A full circle.

Answer

A segment from center to edge.

Question 7

What is a semicircle?

Accepted Answer

Half of a circle

Answer

One-third of a circle.

Answer

A full circle.

Answer

A quarter of a circle.

Question 8

What is the circumference of a circle?

Accepted Answer

The distance around the circle

Answer

The area inside the circle.

Answer

The length of a radius.

Answer

The distance across the circle.

Question 9

What is the formula for the circumference of a circle?

Accepted Answer

C = 2πr

Answer

C = πr².

Answer

C = πd².

Answer

C = r/2.