Vocabulary
Vocabulary 2
Circles
Angles
Random
100
One angle equals 90 degrees.
What is a right angle?
100
Vertical angles are always ___________ and _________.
What is equal and across from each other?
100
If the diameter of a circle is 15, find the radius.
What is 7.5?
100

If angle X and angle Y are vertical angles, and the measure of angle X is 60º, what is the measure of angle Y?

What is 60º?
100
An angle that equals more than 90 and less than 180 degrees.
What is an obtuse angle?
200
One 180 degree angle is called this.
What is a straight angle?
200

Complementary angles add up to be ______.

What is 90º?
200
If the radius of a circle is 30, find the diameter.
What is 60?
200

If angle K and angle L are vertical angles, and the measure of angle L is 105º, what is the measure of angle K?

What is 105º?

200

If angle A and angle B are complementary angles, and the measure of angle A is 35º, what is the measure of angle B?

What is 55º?

300
An angle that is between 0 and 90 degrees is called this.
What is acute?
300
Supplementary angles are two angles that add to a total of ___.
What is 180 degrees?
300
Find the circumference of a circle if the diameter is 8 inches.
What is 25.12 inches?
300
If angle T and angle V are supplementary angles, and the measure of angle T is 40º, what is the measure of angle V?
What is 140º?
300
Angle X and angle Y are vertical.  If angle X equals 2x and angle Y equals 64, find x.
What is 32º?
400

True or False: A complementary angle is one angle that equals 90 degrees.

**must be able to back up answer**

What is false?  
**it should be TWO angles**
400
True or False: Vertical angles are across from each other, equal, and share the same vertex.

**must be able to back up answer**

What is true?
400
Find the area of a circle if the radius is 1.9 cm.

**Use pi=3.14**  

**Must round to nearest hundredth**

What is 11.34 cm squared?

**must have squared**

400
Angle L and K are vertical angles.  If angle L equals 52 and angle K equals 2x+4, find x. 
What is 24?
400
Angle A and angle B are complementary.  Angle A equals x and angle B equals 2x.  Solve for each angle.
What is 30 degrees and 60 degrees?
500
The formula for finding the area of a circle.
What is 3.14 x r^2?

3.14 times radius to the second power.

500

The formula for finding circumference of a circle.

What is C=3.14xd OR C=2x3.14xr?

d=diameter

r=radius

500

Find the area of a circle with a diameter of 4.8 feet.

**Use pi=3.14**

**Must round to nearest hundredth**

What is 18.09 feet squared?

**Must have squared**

500
If angle C and angle D are complementary angles, and the measure of angle C = (x+5)º measure of angle D= (2x+4)º Find the measure of angle C.
What is 32º ?  

x+5+2x+4=90
3x=81
x=27
C= 27+5 --> 32

500
If angle B and angle C are supplementary angles, and the measure of angle B = (3x+1)º measure of angle C= (x+19)º Find the measure of angle C.
What is 59º?
 3x+1+x+19=180
4x=160
x=40
C=40+19 --> 59
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