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Vocab You Better Know
Complement Me
What "Sup"
Triangles
Angle Definitions
100

What is an angle whose degree measure is exactly 90?

right angle

100

Two angles are x and 36, what is the value of x?

54

100
Two angles are 3x and 54, what is the value of x?
42
100

All angles in a triangle must add up to what degree?

What is 180?
100

angles that add up to 90 degrees

What are complementary angles?

200

An angle that has less than 90 degrees?

acute angle

200

Two angles are 2x and 26, what is the value of x?

32

200

Two angles are 7x and 47, what is the value of x?

19

200

A triangle has side measurements of 2 in., 3 3/8 in. and 2 in. with a 113 degree angle. Classify the triangle by sides and angles.

What is obtuse isosceles triangle?

200
angles that add up to 180 degrees
What are supplementary angles?
300
What is an angle that has greater than 90 degrees but less than 180?
obtuse angle
300

Two angles are 4x and 2, what is the value of x?

22

300
Two angles are 4x and 112 , what is the value of x?
17
300
Can a triangle have sides of 9 in, 16 in, and 25 in? Explain or show work.
No, 9+16=25
300

angles are across each other that are formed by intersecting lines

What are vertical angles?

400
What is an angle whose degrees measure is exactly 180 and forms a straight line?
straight line/angle
400

Two angles are 2x + 3 and 63, what is the value of x?

12

400

Two angles are x - 22 and 135, what is the value of x?

67

400

In a triangle, angle one measures 50 degrees, angle two measures x-15 and angle three measures 4x. What is the value of x?

x=29
400

angles that are next to each other are called this

What is adjacent?

500
I am a triangle with no congruent sides and I have an angle that measures 90 degrees, what is my name?
Right Scalene Triangle
500

Two angles are 4x - 3 and x + 8, what is the value of x? What is the value of the smaller angle?

17; 25 degrees

500
Two angles are 4x + 3 and 2x + 87 , what is the value of x? What is the value of the larger angle?
15; 117
500

In a right triangle, one angle measure 53 degrees and a third angle measures 2x+5 degrees. what is the measurement of the third angle?

What is 37 degrees?
500

If two angles are vertical and one angle is 5x and the other angle is 3x+28, what is the value of x? What is the value of the two angle?

x=14; 70 degrees