Transformations
This transformation maps (-3,7) to (-3,-7). (State the transformation type with a number, if applicable)
What is a reflection across the x-axis?
This triangle type has 3 acute angles.
What is acute?
The measure of the angles in a triangle add up to this.
What is 180 degrees?
Triangle ABC is congruent to triangle XYZ. If the measure of angle A is 45 degrees, this is the measure of angle X.
What is 45 degrees?
This theorem states that the third pair of angles in two triangles are congruent if two angles of the one triangle are congruent to two angles of the other triangle.
What is the Third Angles Theorem?
This transformation maps the point (2,4) into (6,12). (State the transformation type with a number, if applicable)
What is a dilation by a factor of 3?
A triangle has an angle with a measure of 100 degrees. It must be this triangle type.
What is an obtuse triangle?
Two angle measures of a triangle are 50 degrees and 60 degrees. This is the measure of the third angle.
What is 70 degrees?
Triangle ABC is congruent to triangle XYZ. Angle B is congruent to this angle.
What is angle Y?
This theorem states that the sum of the measure of the angles in a triangle is 180 degrees.
What is the Triangle Sum Theorem?
This transformation maps the point (-2,-3) to (4,5). (State the transformation type with a number, if applicable)
What is a translation right 6 units and up 8 units?
This triangle type has 3 congruent angles.
What is equiangular?
In some triangle, the exterior angle's measure is 100 degrees. The remote interior angles' measures are 40 degrees and this.
What is 60 degrees?
Triangle ABC is congruent to triangle XYZ. This side is congruent to segment ZX.
What is segment AC? (or segment CA)
This theorem states that the measure of an exterior angle is equal to the sum of the measures of the two remote interior angles.
What is the Exterior Angles Theorem?
This transformation maps (1,5) to (-5,1). (State the transformation type with a number, if applicable)
What is a 90 degree counter-clockwise (CCW) rotation?
A triangle has sides lengths of 5, 5, and 7. Based solely on this information, it is classified as this.
What is isosceles?
This is the measure of an angle in an equiangular triangle.
What is 60 degrees?
Triangle ABC is congruent to triangle XYZ. The length of side XY is 6. The length of side AB is (2x - 2). This is the value of x.
What is 4?
This theorem states that if two angles form a linear pair, then they are supplementary.
What is the Linear Pair Theorem?
These 3 transformation types keep length, angle measure, and area the same.
What are translations, rotations, and reflections?
An equilateral triangle has two sides lengths of 6y and 4y + 12. This is the side length of the third side.
What is 36?
The measure of the exterior angle of a triangle is (6x - 9) degrees. The measure of the two interior angles are 90 degrees and (2x + 1) degrees. This is the measure of the exterior angle.
What is 141 degrees?
Triangle ABC is congruent to triangle XYZ. The measure of angle A is 40 degrees. The measure of angle Y is 60 degrees. This is the measure of angle X.
What is 40 degrees?
A corollary of the Triangle Sum Theorem indicates that the measures of the acute angles in a right triangle sum up to this.
What is 90 degrees?