Lesson 7 Exit G2 Segment Lengths in Circles

Front

What is the formula for the length of a segment in a circle?

Back

The length of a segment in a circle can be calculated using the formula: L = r * θ, where L is the length of the segment, r is the radius, and θ is the angle in radians.

Front

What is the relationship between diameter and radius in a circle?

Back

The diameter of a circle is twice the length of the radius. Therefore, D = 2r, where D is the diameter and r is the radius.

Front

How do you find the radius if you know the diameter?

Back

To find the radius from the diameter, use the formula: r = D/2, where D is the diameter.

Front

What is the value of 'x' if the diameter of a circle is 16?

Back

If the diameter is 16, then the radius (r) is 8, and 'x' could represent the radius.

Front

What is the central angle of a circle?

Back

The central angle of a circle is the angle whose vertex is at the center of the circle and whose sides intersect the circle.

Front

How do you convert degrees to radians?

Back

To convert degrees to radians, use the formula: radians = degrees × (π/180).

Front

What is the circumference of a circle?

Back

The circumference of a circle can be calculated using the formula: C = πD or C = 2πr, where C is the circumference, D is the diameter, and r is the radius.

Front

What is the area of a circle?

Back

The area of a circle is calculated using the formula: A = πr², where A is the area and r is the 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 the relationship between a chord and the radius?

Back

A chord is perpendicular to the radius if it bisects the radius at a right angle.