Angles
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Angles and triangles
Think Angles
Triangles
100
Right angles are exactly ... degrees
90
100
What is the name of this kind of triangle?
Scalene triange
100
A triangle has angle measurements of 163°, 2°, and 15°. What kind of triangle is it?
Obtuse Triangle
100
The combined angle measure is 115°. What does angle t measure?
25 degrees
100
The sum of angles in a triangle is...
180 degrees
200
Straight line angles are exactly ... degrees
180
200
Name this triangle for its sides and angles.
Right Scalene
200
Describe right-angled triangles
Triangles that have one right angle.
200
Tell whether the angles are complementary or supplementary. Then find the value of x
Complimentary, x=5
200
Triangles that have all equal sides and angles are called...?
Equilateral triangles
300
What do angles of a revolution add up to?
360 degrees
300
This angle can be written as... Name all three
< ABC
<CBA
<B
300
Describe obtuse angles
Angles between 91 and 179 degrees.
300
Which type of triangle has one angle greater than 90 degrees and two equal acute angles?
Obtuse Isosceles
300
Scalene triangles have...
All different sides and angles
400
What are supplementary angles?
Two angles are supplementary if their sum is 180 degrees.
400
The correct definition of an angle?
two rays that meet at a single endpoint (vertex)
400
Triangles can be classified based on their angles, such as...
Acute, obtuse, and right-angled triangles.
400
A point where two or more lines meet, a corner. HINT: You use this to name an angle!
vertex
400
Triangles that have one pair of equal sides and angles are called...?
Isosceles triangle
500
What are complementary angles?
Two angles are complementary if they add up to 90 degrees.
500
What is Pythagoras' theorem?
c2 = a2 + b2
500
Acute triangles have what type of angles...
All angles in a triangle are acute.
500
All of the following tools can be used to measure angles--
Three answers:
- scales
- straightedge
- thermometer
- angle ruler
- beaker
- protractor
500
The longest side of a triangle will always be opposite what?
The largest angle