Solve for x
x = 54
How will the slopes of two perpendicular lines be related?
They are negative reciprocals
AB bisects CD at point E.
CE congruent to ED
The parallelogram that has congruent diagonals but not perpendicular diagonals.
What is a rectangle
The law of cosines formula
c2 = a2 + b2 - 2abcos(C)
Solve for x
x = -10
Simplify radical 448 completely.
8*sqrt(7)
<1 congruent to <3 or <2 congruent to <4
The length of the diagonal of a square whose side length is 8.
What is 8sqrt(2)
Find BC to nearest tenth.
What is 5.0
Find x
x = -10
Find the slope between (4, 8) and (-6, -10)
9/5 or 1.8
AB is perpendicular to BC
<ABC is a right angle
The length of the diagonal of a rectangle whose length and width are 8 and 15
What is 17
Find the angle to nearest degree.
What is 42 degrees
Name the type of angles represented by <2 and <6
Corresponding angles
Find the midpoint between (5, 8) and (-4, 10)
(0.5, 9)
You proved two triangles congruent. Now you want to prove that two of their angles are congruent. What's the reason?
Corresponding parts of congruent triangles are congruent.
What would you have to show for a coordinate proof that a given quadrilateral is a square?
That there are 4 congruent sides (distances) and 1 right angle (slopes)
Solve for AB to nearest tenth:
What is 11.3
What must be true about <1 and <6
They must sum to 180.
Find the distance between (2, -3) and (-4, 7). You don't need to simplify.
What is rad(136)
AB + CD is congruent to CD + EF
Equality of addition
The five methods of proving a parallelogram.
1. 2 pairs opp. sides congruent
2. 2 pairs opp. sides parallel
3. 2 pairs opp. angles congruent.
4. 1 pair of opp. sides is congruent and parallel.
5. Diagonals bisect each other
Solve for the angle to the nearest tenth.
What is 65.5 degrees