All angles less than 90 degrees
What is an acute triangle?
ppusleyratrm nglesa
Two angles that have a sum of 180*.
What are supplementary angles?
A transformation that moves every point of a figure by the same distance and in the same direction.
What is translation?
If two angles of one triangle are congruent to two angles of another, then the triangles are similar.
What is the AA-Postulate?
The Side-Side-Side(SSS) Congruence Postulate is when all of the three sides in one triangle are congruent to all three sides in the other triangle.
What is the Side-Side-Side(SSS) Congruence Postulate?
Equal to 90 degrees
What is a right triangle?
yratnemelpmoc nglesa
Two angles that have a sum of 90*
What are complementary angles?
A transformation that turns a figure about a fixed point called the center of rotation.
What is rotation?
If one angle of one triangle is congruent to the one angle of another triangle and the adjacent sides are proportional, then the triangles are similar.
What is the SAS-Postulate?
The Angle-Angle-Side(AAS) Congruence Postulate is two angles one side that is not included.
What is the Angle-Angle-Side(AAS) Congruence Postulate?
Has three equal sides
What is an equilateral triangle?
nocurgtent nglesa
Two or more angles that have the same measure.
What are congruent angles?
A transformation that have the same shape and size, but also has the figures faced in opposite directions.
What is reflection?
If all three sides of one triangle are proportional to corresponding sides of another triangle, then the triangles are similar.
What is the SSS-Postulate?
It's used to prove if triangles are congruent and its also used only for right triangles.
What is the Hypotenuse Leg(HL)?
Has two equal sides
What is an isosceles triangle?
rotcesib angles
Either a ray, a line, or a segment that divides an angle into two equal angles.
What is angle bisector?
A transformation that produces an image that is the same shape as the original, but is a different size.
What is dilation?
They have the same shape, but also different sizes.
What are Similar Triangles?
If two angles and the included side of one triangle are congruent to two angles and the included side of another triangle, then the two triangles are congruent
What is the Angle-Side-Angle(ASA) Congruence Postulate?
Has no equal sides at all
What is a scalene triangle?
lacitrev nglesa
Two angles if their sides form two pairs of opposite rays. Plus, they are congruent.
What are vertical angles?
To change a shape into a turn, flip, slide or resize.
What is a transformation?
3 ways to prove triangles are similar in order
What are AA-Postulate, SAS-Postulate, and SSS Postulate Triangles?
Two sides and the included angle. Also the angle is in between the two sides.
What is the Side-Angle-Side(SAS) Congruence Postulate?