Triangle Angles
Finding Angles
Conjectures
Congruence Shortcuts
Random
100
This triangle has two congruent base angles
What is an isosceles triangle?
100
Two angles in a triangle are each 60 degrees. What is the measure of the third angle?
What is 60 degrees?
100
Fill in the conjecture. In a triangle, the longest side is _________________________ the largest angle.
What is opposite or across?
100
True or False. AAA is a congruence shortcut.
What is false.
100
What does CPCTC stand for?
What is corresponding parts of congruent triangles are congruent?
200
This triangle has all angles less than 90 degrees
What is an acute triangle?
200
Two angles in a triangle measure 42 degrees and 101 degrees. What is the measure of the third angle?
What is 37 degrees?
200
Fill in the conjecture. The measure of the two smallest sides of a triangle must be __________________ than the third side.
What is greater?
200
True or False. ASA is a congruence shortcut.
What is true
200
In a proof, what property allows us to say a side is congruent to itself?
What is the reflexive property?
300
This triangle has one angle greater than 90 degrees?
What is an obtuse triangle?
300
Three angles in a triangle are 30, 60, and x + 45. Solve for x.
What is x = 45?
300
Fill in the conjecture. The measure of an exterior angle of a triangle is equal to the sum of the _________ ________________ _________________.
What is two remote (interior) angles?
300
True or False. SAA is a congruence shortcut.
What is true
300
If the exterior angle is 110 degrees, and the two remote interior angles are 30 and 2x. Find x.
What is x = 40
400
This triangle has one angle equal to 90 degrees and two angles less than 90 degrees?
What is a right triangle?
400
Three angles in a triangle are 20, 40, and 2x - 4, find x.
What is x= 62?
400
Fill in the conjecture. If a triangle is isosceles, then _________ ________________ are congruent. Hint: Not the sides.
What is base angles?
400
True or False. SSA is a congruence shortcut.
What is false
400
0 is an odd number. True or False.
What is false. It is an even number
500
All angles in a triangle sum to this number
What is 180 degrees?
500
Three angles in a triangle measure 3x, 10x, 5x. Find x.
What is x = 10?
500
If a triangle has two congruent base angles, then it must be one of these two types of triangles.
What is isosceles or equilateral.
500
True or False. There are four shortcuts that we use.
What is true. AAS, SSS, ASA, SAS
500
True or False. The word hundreth comes from the word hundrath, which actually means 120.
What is true!
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