7-1 Flashcardizz Practice

Front

What is a Radius?

Back

A radius is a line segment that connects the center of a circle to any point on its circumference.

Front

What is a Chord?

Back

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

Front

What is a Diameter?

Back

A diameter is a chord that passes through the center of the circle, and it is the longest chord.

Front

What is a Tangent?

Back

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

Front

What is the Center of a Circle?

Back

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

Front

What is a Secant?

Back

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

Front

How do you find the length of a Radius?

Back

The length of a radius can be found by dividing the diameter by 2.

Front

What is the relationship between Diameter and Radius?

Back

The diameter is twice the length of the radius.

Front

What is the formula for the circumference of a circle?

Back

The circumference (C) is calculated using the formula C = 2πr, where r is the radius.

Front

What is the formula for the area of a circle?

Back

The area (A) is calculated using the formula A = πr², where r is the radius.