Geometry Circle Relationships (MATH)

Question 1

Circle O has a diameter of 20. It has the same area as 4 circles with radius

Accepted Answer

$5$

Answer

$2.5$

Answer

$10$

Question 2

A pizza slice makes a central angle of 24°. The slices are the same size. How many slices?

Accepted Answer

15 slices

Answer

30 slices

Answer

24 slices

Answer

18 slices

Question 3

Given Circle O with diameter AB, what is the measure of ∠COB?

Accepted Answer

52°

Answer

26°

Answer

64°

Answer

128°

Question 4

True or False? The measure of angle BAC is 47.5°.

Accepted Answer

False

Answer

True

Question 5

Which expression equals y°?

Accepted Answer

$3$

Answer

$1$

Answer

$2$

Answer

Question 6

True or False? The measure of angle ABC is equal to half the difference of arc ADC and arc AC.

Accepted Answer

True

Answer

False

Question 7

What is the measure of the earth’s arc, x, that is visible from the satellite?

Accepted Answer

162°

Answer

81°

Answer

171°

Answer

198°

Question 8

True or False? The measure of angle x is 25°.

Accepted Answer

True

Answer

False

Question 9

Diameter AB is perpendicular to chord CD at E. AE =16 and EB = 4. What is the length of CD?

Accepted Answer

$16$

Answer

$8$

Answer

$10$

Answer

$32$

Question 10

Two chords intersect inside a circle. Which equation is used to find the value of x?

Accepted Answer

$6x=90$

Answer

$9x=60$

Answer

$10x=54$

Question 11

A triangle inscribed in a semicircle must be

Accepted Answer

right

Answer

acute

Answer

obtuse