100POINTS! EXPLAIN YOUR ANSWER OR I REPORT
2 answers:
Answer:
<h2>linear pair</h2><h2>61°</h2>Step-by-step explanation:
<h3>to understand this</h3><h3>you need to know about:</h3>- vertical angle
- equation
- PEMDAS
- A linear pair is two angles that are adjacent and whose non-common sides form a straight line
- linear pair contains 180°
You might be interested in
Answer:
A and C
Step-by-step explanation:
Given
2cos²x - 2 = 0 ( add 2 to both sides )
2cos²x = 2 ( divide both sides by 2 )
cos²x = 1 ( take the square root of both sides )
cos x = ± = ± 1
cos x = 1 ⇒ x = (1) = 0°
cos x = - 1 ⇒ x = (- 1) = 180°