Knowing all the angles
All triangles are NOT created equal
But Some Triangles are Congruent!!
So Prove it to Me!
100
In an isosceles triangle, on base angle has a measure of 72, what is the measure of the other base angle?
What is 72 degrees
100
In triangle ABC, angle A=100, B=50, and C=30. Name the longest side
What is side BC
100
The four reasons we know how to prove triangles congruent
What is SSS, SAS, ASA, SAA
100
What is CPCTC
What is corresponding parts of congruent triangles are congruent
200
In an isosceles triangle, one base angle has a measure of 40, what is the measure of the vertex angle?
What is 100 degrees
200
In triangle XYZ, XY=11, YZ=12, and XZ=9. Which angle is the smallest?
What is angle Y.
200
The two ways that triangles cannot be proven congruent
What is AAA, SSA
200
For what reason is DR congruent to RD in this diagram?
What is reflexive property
300
Given this diagram, find the value of X
What is 120 degrees
300
In the given triangle, list the angles from largest to smallest
What is angle P, angle R, angle Q
300
The reason that these two triangles are congruent
What is SSS
300
Given that lines AB and DE are parallel, what would be the next logical deduction from this information?
What is angle 2 is congruent to angle 4
400
Given this diagram, find the value of X
What is 130 degrees
400
A triangle has sides of 7, 9, and 17. Is this possible, explain why or why not.
What is no, because the sum of the 2 smallest must be greater than the third.
400
The reason that these two triangles are congruent
What is AAS or ASA
400
What is wrong with this proof? AE=ED; given BE=CE; given angle AEB= angle DEC; vertical angles AEB=DEC; ASA
What is last step should be SAS
500
In a triangle, the measure of the exterior angle is 148 and one remote interior angle is 35. What is the measure of the other remote interior angle?
What is 113 degrees
500
If one side of a triangle is 15 and another is 20, between what values can the third side be?
What is 5
500
Triangle ABC=triangle DEF. Correct this statement
What is ABC=DFE
500
Given the following proof, for what reason is BD congruent to CD ?
What is the vertex angle bisector conjecture (bisector or the vertex angle is also the median and altitude of the isosceles triangle)
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