Math 3 Circles Review

Math 3 Circles Review

Assessment

Flashcard

Mathematics

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

Student preview

quiz-placeholder

15 questions

Show all answers

1.

FLASHCARD QUESTION

Front

What is the standard equation of a circle?

Back

The standard equation of a circle is (x-h)² + (y-k)² = r², where (h, k) is the center and r is the radius.

2.

FLASHCARD QUESTION

Front

How do you find the radius from the circle equation x² + y² - 8x + 10y - 8 = 0?

Back

To find the radius, rewrite the equation in standard form. Completing the square gives the center (4, -5) and radius r = 7.

3.

FLASHCARD QUESTION

Front

What is the measure of an angle formed by a tangent and a secant intersecting outside a circle?

Back

The measure of the angle is half the difference of the measures of the intercepted arcs.

4.

FLASHCARD QUESTION

Front

If minor arc AC = 72° and minor arc CD = 132°, what is the measure of ∠ ABD?

Back

∠ ABD = 1/2 (132° - 72°) = 30°.

5.

FLASHCARD QUESTION

Front

What is the formula to calculate the circumference of a circle?

Back

The circumference C of a circle is given by C = 2πr, where r is the radius.

6.

FLASHCARD QUESTION

Front

What is the area of a circle?

Back

The area A of a circle is given by A = πr², where r is the radius.

7.

FLASHCARD QUESTION

Front

How do you determine the center of a circle from its equation?

Back

The center (h, k) can be found from the equation (x-h)² + (y-k)² = r².

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?