Using Angle Addition Postulate

Flashcard
•
Mathematics
•
10th - 11th Grade
•
Hard
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15 questions
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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
Calculate m∠ABC if m∠ABD = 60° and m∠DBC = 45°.
Back
m∠ABC = m∠ABD + m∠DBC = 60° + 45° = 105°.
3.
FLASHCARD QUESTION
Front
If m∠RST = (12x - 1)° and m∠RSU = (9x - 15)°, find x if m∠UST = 53°.
Back
Set up the equation: (12x - 1) + (9x - 15) + 53 = 180. Solve for x = 13.
4.
FLASHCARD QUESTION
Front
What is another name for ∠H if it is part of triangle KGH?
Back
∠LHG is another name for ∠H.
5.
FLASHCARD QUESTION
Front
If m∠RST = 155° and m∠RSU = 102°, what is m∠UST?
Back
Using the Angle Addition Postulate: m∠UST = m∠RST + m∠RSU - 180° = 155° + 102° - 180° = 77°.
6.
FLASHCARD QUESTION
Front
Define complementary angles.
Back
Complementary angles are two angles whose measures add up to 90°.
7.
FLASHCARD QUESTION
Front
Define supplementary angles.
Back
Supplementary angles are two angles whose measures add up to 180°.
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