Tangent Lines and Chords of a Circle

Tangent Lines and Chords of a Circle

Assessment

Flashcard

Mathematics

10th - 12th Grade

Easy

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15 questions

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1.

FLASHCARD QUESTION

Front

What is a tangent line to a circle?

Back

A tangent line is a straight line that touches the circle at exactly one point, known as the point of tangency.

2.

FLASHCARD QUESTION

Front

What is the relationship between a tangent line and a radius at the point of tangency?

Back

The tangent line is perpendicular to the radius drawn to the point of tangency.

3.

FLASHCARD QUESTION

Front

What is a chord in a circle?

Back

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

4.

FLASHCARD QUESTION

Front

What is the diameter of a circle?

Back

The diameter is a chord that passes through the center of the circle and is the longest chord.

5.

FLASHCARD QUESTION

Front

How do you find the length of a chord given the radius and the distance from the center to the chord?

Back

Use the formula: length of chord = 2 * √(r² - d²), where r is the radius and d is the distance from the center to the chord.

6.

FLASHCARD QUESTION

Front

What does it mean for arcs to be congruent in a circle?

Back

Congruent arcs have the same measure and subtend congruent chords.

7.

FLASHCARD QUESTION

Front

If two chords are congruent, what can be said about their distances from the center of the circle?

Back

Congruent chords are equidistant from the center of the circle.

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