Information Needed to Prove ____ Flashcards
1
Q
Triangle Angles:
Obtuse, Acute, or Right
A
Obtuse ~ c²>a²+b²
Right ~ c²=a²+b²
Acute ~ c²<a²+b²
2
Q
Quadrilateral Angles:
Is it a Right Angle?
A
If the adjacent sides to the angle in question have opposite reciprocals, then the angle is a right angle.
3
Q
Parallel Lines
A
If the slopes of the lines are the same, they are parallel.
4
Q
Side Lengths
A
If you cannot count the side lengths, draw a triangle connecting the ends of the lines. Using c²=a²+b², the hypotenuse is the length of the line.
