Vocab you should know
An angle that is less than 90 degrees
What is an acute angle?
a part of a line that consists of two endpoints and all the points in between them
What is a line segment?
the shifting of a figure from one place to another without rotating, reflecting or changing its size
Write a congruence statement for △ABC and △DEF
△ABC≅△DEF
A trapezoid is (always/sometimes/never) an isosceles trapezoid
sometimes
an angle that is more than 90 degrees and less than 180 degrees
What is an obtuse angle?
a part of a line that consists of one endpoint and all the points of a line in that direction
What is a ray?
a transformation where a geometric figure is turned around a fixed point, called the center of rotation, by a specific angle, changing its orientation without altering its shape or size
What is a rotation?
a postulate used to prove that two triangles are congruent if two corresponding angles and the included side of one triangle are congruent to the corresponding two angles and included side of the other triangle.
ASA
What is the sum of the measures of a the interior angles of a 13-gon?
1980
y=mx=b
what is slope-intercept form?
a straight path that extends in two opposite ways without end and has no thickness
what is a line?
a transformation where a shape is "flipped" across a line, called the line of reflection, creating a mirror image of the original shape, with each point on the original shape being the same distance from the line of reflection as its corresponding point on the reflected image
What is a reflection?
a type of congruence statement that does NOT prove the two shapes are congruent
AAA
Solve for x: 9x+15+6x+15
x=10
Ax+By=C
What is standard form in a linear equation?
two objects that are intersecting
What are line segments and rays
Describe the translation of the graph of y=x^2 that results in the graph of y=x^2-5
the information provided at the beginning of a problem statement
what is the given?
Quadrilateral MNOP is a kite. If MN=4cm and OP=9cm, find the perimeter of MNOP.
MNOP=26cm
a^2+b^2=c^2
What is Pythagorean theorem?
(x1+x2)/2,(y1+y2)/2
What is the midpoint equation?
If the graph of the function is y=|x| what is the equation of the function if it was translated 3 units down and 4 units right?
y=|x-4|-3
Find the the m<C in a triangle if m<A= 102 degrees and m<B=53 degrees
25 degrees
In a quadrilateral BEAR, diagonal BA bisects <B and <A and diagonal ER bisects <E and <R. What is the best classification of quadrilateral BEAR?
Kite