What is another name for a complementary angle AND what is it's measure in degrees?
Right angle, 90 degrees
What does a supplementary angle look like AND what is its measurement in degrees?
Straight line, 180 degrees
What is a vertical angle and how do I find its measurement?
Vertical angle is the angle across from the other angle- they have the same measurement.
What is the sum of all interior angles in a triangle?
180 degrees
What are the 3 types of angles and identify if they are less than 90 degrees, 90 degrees, or more than 90 degrees.
Acute- less than 90 degrees
Right- 90 degrees
Obtuse-180 degrees
These are complementary angles
<A= 61 degrees
<B= x-1
Part 1: Solve for x
Part 2: What does <B equal?
Part 1: 30 degrees
Part 2: 29 degrees
Solve for x
These angle are supplementary
<I= 101
<J= 5x-6
Part 1: Solve for x
Part 2: What does <J equal?
Part 1: 17 degrees
Part 2: <J=79
These angles are vertical
<Q= 2x
<R= 34
Part 1: Solve for x
Part 2: What does <Q?
Part 1: x= 17 degrees
Part 2: <Q=34 degrees
Solve for x
These are interior angles in a triangle
<A 143
<B 32
<C x
Answer: 5 degrees
What are my three steps when setting up a two step equation and solving for an angle?
1- pull out measurements
2- set it equal to 90 or 180
3- solve for x
These angles are complementary
<C= 9x
<D= x
Part 1: Solve for x
Part 2: What does <C equal?
Part 1: 9 degrees
Part 2: 81 degrees
Solve for x
These angle are supplementary
<K= 3x
<L= 8x+70
Part 1: Solve for x
Part 2: What does <K and <L equal?
Part 1: 10 degrees
Part 2: <K=30 degrees <L=150 degrees
Solve for x
These angles are vertical
<S= 90+x
<T= 113
Part 1: Solve for x
Part 2: What does <S?
Part 1: x=23 degrees
Part 2: 113 degrees
These are all interior angles in a triangle
Solve for x
<D 9x+10
<E 44
<F 12x
Then plug in to find what each angle degree is
Answer:
x= 6 degrees
D= 64 degrees
E= 44 degrees
F=72 degrees
How many degrees is a circle AND how many right angles is it made up of?
360 degrees, 4 right angles
These angles are complementary
<E= x+16
<F= 3x+2
Part 1: Solve for x
Part 2: What does <E and <F equal?
Part 1: 18 degrees
Part 2: <E=34 degrees <F=56 degrees
Solve for x
These angle are supplementary
<M= 24
<N= 3x+6
Part 1: Solve for x
Part 2: What does <N equal?
Part 1: x=50 degrees
Part 2:<N= 156 degrees
Solve for x
These angles are vertical
<U= 3x-20
<V= 70
Part 1: Solve for x
Part 2: What does <U equal?
Part 1: x=30 degrees
Part 2: <U=70 degrees
These are all interior angles in a triangle
Solve for x
<G= 5x-4
<H= 3x+5
<I= x+8
Then plug in to find what each angle degree is
Answer:
x=19 degrees
G= 91 degrees
H= 62 degrees
I=27 degrees
A) How do I name an angle?
B) What is this angles two names?
A) Use all it's points
The vertex (what angle you are measuring should be in the middle) should also be the angle name?
B)
These angles are complementary
<G= 62
<H= x/3 +1
Part 1: Solve for x
Part 2: What does <H equal?
Part 1: 81 degrees
Part 2: <H= 28 degrees
Solve for x
These angle are supplementary
<O= 4x+9
<P= 8x+3
Part 1: Solve for x
Part 2: What does <O and <P equal?
Part 1: x= 14 degrees
Part 2: <O=65 <P=115
Solve for x
These angles are vertical
<W= 3x+7
<X= 5x-5
Part 1: Solve for x
Part 2: What does <W and <X equal?
Part 1: x= 6 degrees
Part 2: <W=25 degrees and <X=25 degrees
These angles are interior angles in a triangle
Solve for x
<J= 15+x
<K= 47
<L= 18+4x
Then plug in to find what each angle degree is
Answer:
x= 20 degrees
J= 35 degrees
K= 47 degrees
L= 98 degrees
What are the steps I take when measuring an angle with a protractor?
Step 1- determine if the angle is acute or obtuse
Step 2-line up protractors dot on the angle's vertex
Step 3- line up your straight lines
Step 4- extend your line