TSI Practice Questions

Front

What is the diameter of a circle?

Back

The diameter is a straight line passing from side to side through the center of a circle.

Front

What is the radius of a circle?

Back

The radius is the line segment from the center of the circle to any point on its circumference.

Front

How do you calculate the circumference of a circle?

Back

Circumference = π × diameter or Circumference = 2 × π × radius.

Front

What is the area of a circle?

Back

Area = π × radius².

Front

What is the relationship between diameter and radius?

Back

The diameter is twice the length of the radius (Diameter = 2 × radius).

Front

What is a chord in a circle?

Back

A chord is a line segment with both endpoints on the circle.

Front

What is a tangent to a circle?

Back

A tangent is a line that touches the circle at exactly one point.

Front

What is a secant line?

Back

A secant line is a line that intersects a circle at two points.

Front

What is the center of a circle?

Back

The center is the point that is equidistant from all points on the circle.

Front

What is the formula for the area of a sector of a circle?

Back

Area of sector = (θ/360) × π × radius², where θ is the angle in degrees.