Chapter 11 Vocabulary
A/An __________ angle has a measure of 180 degrees.
Straight
180 degrees is = to what fraction?
1/2
What is the measure, in degrees, of a full circle?
360 degrees
Two angles together equal 90 degrees. One of the angles measures 45 degrees. What is the measure of the second angle?
45 degrees
______________ means "in the opposite direction in which the hands of a clock move."
counterclockwise
What fraction of the circle does the shaded angle represent?
3/4
The measure of an angle is labeled 45/360. What is the measure of the angle in degrees?
45 degrees
There are 3 angles in a FULL circle. One angle in the circle measures 100 degrees. Another angle in the circle measures 220 degrees. What does the measure of the third angle have to be?
40 degrees
True or False: An obtuse angle measures anywhere from 90 degrees to 180 degrees.
False.
It's 91 degrees to 179 degrees
What fraction of the circle does the angle represent and the direction (clockwise or counterclockwise).
1/2 turn counterclockwise
An angle is measures 127 degrees. What type of angle is it?
Three angles are joined together to create a straight angle. One of the angles measures 70 degrees. Another one of the angles measures 60 degrees. What does the measure of the third angle have to be?
50 degrees
Tell me the definition of degree (in terms of math).
The unit used for measuring angles.
Susan watched T.V. from 1:00 PM-1:45 PM. Describe the turn the minute hand made in terms of fraction and direction.
The minute hand made a 3/4 turn clockwise.
Hadley has a right angle. She wants to divide it into three angles with equal measure. What will the measure of each angle be?
30 degrees
What is the angle degree of x?
x = 50 degrees
Tell me the definition of a protractor.
A tool for measuring the size of an angle.
If "1/2 turn counterclockwise" is the answer, what is the question that was asked? *Write a question/word problem and draw a picture representation of the answer on your desk.
Answers will vary
Matt cut a circle into 8 equal sections. He drew an angle that measures the same as the total measure of 3 of the sections in the circle. What is the measure of the angle that Matt drew?
135 degrees
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