This type of triangle has one angle that measures 90 degrees.
A right triangle.
100
What is the sum of the angles of a triangle?
180 degrees
100
What are the six triangle congruence theorems/postulates.
SSS, SAS, ASA, AAS, HL, and LL.
100
Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#13 p.236
Yes, Triangle EFG is congruent to Triangle KLJ
100
Two lines that never intersect and are coplanar are called...
Parallel lines
200
This triangle has side lengths that are all congruent.
An equilateral triangle.
200
Find the measure of other angle of the triangle: 23 degrees, 112 degrees
45 degrees
200
What is a theorem that does NOT prove triangles congruent.
ASS/SSA or AAA
200
Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#7 p.245
No, there is not enough information to prove they are congruent.
200
Two lines that intersect to form right angles are called...
Perpendicular lines.
300
This type of triangle has angles that measure 10, 140 and 30 degrees.
An obtuse triangle.
300
What is true of the two base angles in an isosceles triangle?
They are congruent
300
If you use ASA to prove two triangles are congruent, the side will be...
Inbetween the two congruent angles.
300
Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#19 p.254
Yes, because of ASA.
300
This law follows this line of logic:
If A, then B.
If B, then C.
Therefore, if A, then C.
What is the Law of Syllogism.
400
A triangle whose angles measure 60, 60, and 60 degrees.
What is an equiangular triangle?
400
What is the measure of the third angle in the triangle? 67 degrees, 92 degrees.
21 degrees
400
If ∆CAT≅∆HAT and angle C measures 40 degrees, what is the measure of angle H?
40 degrees
400
Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#25 p.246
Yes, because of SSS
400
Read and answer the following question:
#53 p. 239
B
500
A triangle that never has any equal side lengths.
What is a scalene triangle?
500
The measure of the three angles in a triangle are 20x, 6x, and 10x. What is the value of x?
x = 5
500
If ∆ALX≅∆GIW and angle L=53 degrees and angle X=81 degrees, what is the measure of angle G?
43 degrees
500
Determine if the triangles are congruent. If they are, state the theorem that justifies the congruence and complete the congruence statement.
#11 p.260
Yes, because of HL
500
This is the Pythagorean Theorem:
a^2 + b^2 = c^2
What type of triangle is this used for?
What parts of the triangle are a and b?
What part of the triangle is c?
Right triangles only; A and B are the legs; C is the hypotenuse