General Proof Reasons
What does CPCTC stand for?
Corresponding parts of congruent triangles are congruent
A property of a quadrilateral is?
They must have 4 sides
Slopes of perpendicular lines are
Negative reciprocal
Which of the following is not a rigid motion?
-Reflection
-Rotation
-Dilation
-Translation
-Dilation
How do you find the radius of a circle?
Measure half of the circle’s interior
What is a midpoint?
A point the divides the given line segment in two
If a quadrilateral has both pairs of opposite sides congruent, what is it?
parallelogram
A triangle has angles measuring 35° and 65°. What is the measure of the third angle?
80°
What is the image of (4,3) after a reflection over the line Y=1?
(4,-3)
What is a hypotenuse?
The side opposite of the right angle in a right triangle
Which of the following can not be used to prove two triangles congruent?
SSS
AAS
SSA
SAS
SSA
What quadrilateral can we prove with only:
One Pair of opposite sides are congruent AND parallel
Parallelogram
Solve for x: 22x-3x+5=43?
x=2
How many degrees is a right angle?
90 degrees
Parallelogram, rhombus, square, rectangle are all types of...
Quadrilaterals
What does "||" mean?
Parallel lines
Which statement about quadrilaterals is always true?
-Diagonals in a rectangle are congruent
-Rhombuses have 4 congruent angles
-Trapezoids have 2 pairs of parallel sides
-Diagonals in a rectangle are perpendicular
-Diagonals in a rectangle are congruent
Solve for x: 4x + 28 = 64
9
How many right angles can one triangle contain?
1 right angle
True or False: Complementary angles add up to 180°.
False, Complementary angles add up to 90°.
What does a perpendicular bisector form?
two 90° angles and two congruent segements
What are the 5 properties of a Parallelogram we discussed in class?
Both pairs of opposite sides are parallel
Both pairs of opposite sides are congruent
Diagonals bisect each other
Opposite angles are congruent
Consecutive angles are supplementary
What is the square root of 144?
12
Where do points, A (-3, 3), B (1, 5), and C (0,2) end up after a translation of down 1 and right 2 ?
A' (-1, 2), B' (3, 4), C' (2, 1)
A quadrilateral with one angle equaling 90° and has diagonals that are perpendicular bisectors; what shape is it?
Square