Formulas
What is the formula for Area of a Triangle?
Ms. R will verify answer
What part of the circle do you need to find the Area of the Circle?
Radius
What does a TRANSLATION do to a point?
hint: transformation and translation are different words!
Moves the point left/right and up/down
If two angles are adjacent and supplementary, then they are called a _________ and they add to _______.
Linear Pair, 180 degrees
Which quadrilaterals have all 4 sides congruent?
Square and Rhombus
What is the formula for Midsegment of a Trapezoid?
(Base + Base)/ 2 = Midsegment
How many letters do you need to name a major arc?
3
What is the standard direction to ROTATE a circle?
Counterclockwise
List the angle relationships that result in congruent angles.
Hint: vertical angles is one...
Alternate Interior, Alternate Exterior, Corresponding
Which quadrilaterals have 2 sets of opposite sides congruent?
Parallelogram and Rectangle
What is the formula for Inscribed Angles?
Arc / 2 = Angle
What is the center and radius of the circle?
(x-3)2 + (y+5)2 = 121
Center: (3, -5)
Radius: 11
What type(s) of transformations preserve angle measures but NOT side lengths?
Dilations
List the angle relationships that result in supplementary angles.
Hint: Linear Pair is one...
Consecutive Interior, Consecutive Exterior
Which quadrilaterals have congruent diagonals?
Rectangle and Square
What is the formula for a 270 degree counterclockwise ROTATION?
(x, y)-->(y, -x)
What is the name of the line that extends outside a circle and only touches the circle ONCE?
Tangent Line
What would be the image point of A(1, 2) after a dilation of 3 and a translation along the vector <-2,0>?
A'(1, 6)
For the Definition of Complementary Angles, you need (1) ________, (2) _________
To show two angles add to 90 degrees, and to say two angles add to 90 degrees
If a quadrilateral is inscribed in a circle, then its opposite angles are _______
Supplementary, =180
What is the formula for a REFLECTION over the line y = -x?
(x, y)-->(-y, -x)
If two angles intercept the same arc, then what do we know about those two angles?
They are equal
What would be the image point of A(1, 2) after a 90 degree counterclockwise rotation and a reflection over the x-axis?
A'(-2, -1)
For the Definition of Angle Bisector you need (1) ________, (2) _________
To say there is a ray/line/segment that bisects an angle, and show how the angle is split into two equal angles.
When given a set of 4 points called ABCD, how do you determine if the points make a (1) Parallelogram, (2) Rhombus, (3) Square, or (4) Rectangle?
Hint: 2 steps!!
Step 1: Find the length of the outside walls
Step 2: Find the length of the diagonals