1.4 Angle Addition Postulate

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•
Mathematics
•
9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is the Angle Addition Postulate?
Back
The Angle Addition Postulate states that if point B is in the interior of angle AOC, then m∠AOB + m∠BOC = m∠AOC.
2.
FLASHCARD QUESTION
Front
If m∠RST = (12x - 1)° and m∠RSU = (9x - 15)°, what is the value of x if m∠UST = 53°?
Back
x = 13
3.
FLASHCARD QUESTION
Front
What are complementary angles?
Back
Complementary angles are two angles whose measures add up to 90°.
4.
FLASHCARD QUESTION
Front
If m∠K = (3x + 3)° and m∠L = (10x - 4)°, what are the measures of angles K and L if they are complementary?
Back
m∠K = 24° and m∠L = 66°
5.
FLASHCARD QUESTION
Front
What is the measure of angle ABC if it is given that m∠ABC = 105°?
Back
m∠ABC = 105°.
6.
FLASHCARD QUESTION
Front
What is the sum of the measures of angles in a triangle?
Back
The sum of the measures of angles in a triangle is always 180°.
7.
FLASHCARD QUESTION
Front
If m∠DEF = 180°, what type of angle is it?
Back
It is a straight angle.
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