Triangle Inequality Theorem
Triangle Congruency Theorems
Classify Triangles on the Coordinate Plane
Equilateral and Isosceles Triangle
100
Can the following side measures form a triangle?
3, 5, 5
Yes
100
What are the five ways to prove triangles congruent?
SSS, ASA, AAS, SAS, HL
100
Points G, H, and I are plotted on the coordinate grid. How many units are between points H and I?
a) 15 units
b) 14 units
c) 10 units
d) 9 units
d) 9 units
100
Find the value of x
25
50
65
130
25
200
Determine if it is possible to form a triangle with the given side lengths. 15 in., 12 in., 2 in.
No
200
A) Congruent by SAA
B) Congruent by ASA
C) Congruent by SSS
D) Congruent by AAS
B) Congruent by ASA
200
Classify the triangle.
Select all that apply
acute
right
obtuse
isosceles
scalene
equilateral
right
scalene
200
If AB ≅ AC in △ABC, then
∠B ≅ ∠C
∠A ≅ ∠C
BC ≅ AC
BC ≅ BA
∠B ≅ ∠C
300
If the longest side of the triangle was 10. Then the two shorter sides must have a sum that is ....?
a) any length
b) equal to 10
c) greater than 10
d) less than 10
c) greater than 10
300
△ABC ≅ △LMN. Which statement is not true?
A) LM ≅ AB
B) △CAB ≅ △NLM
C) ∠C ≅ ∠N
D) BC ≅ ML
D) BC ≅ ML
300
If a triangle with vertices of (-3,0), (0,3), (3,0), classify it by its sides.
A) Isosceles
B) Scalene
C) Equilateral
D) Obtuse
A) Isosceles
300
Find the value of x
3
6
8
12
6
400
Which of the following does not represent the lengths of the sides of a triangle?
a) 2 cm, 6 cm, 7 cm
b) 5 cm, 2 cm, 5 cm
c) 5 cm, 5 cm, 8 cm
d) 3 cm, 10 cm, 15 cm
d) 3 cm, 10 cm, 15 cm
400
Are these triangles congruent?
A) Yes, by AAS
B) Yes, by SAS
C) Yes, by ASA
D) No, this is the SSA one!!
A) Yes, by AAS
400
Classify the following triangle with vertices at S(3,-1), I(7,3) and T(-1,7). Select all that apply
scalene
isosceles
equilateral
right
acute
obtuse
isosceles
acute
400
Solve for x
9
8
7
6
8
500
What is the range of possible third side measures using 10 and 15?
a) 9 < x < 16
b) 10 < x < 15
c) 1 < x < 5
d) 5 < x < 25
d) 5 < x < 25
500
Are these triangles congruent? If so, state the rule which you used to determine congruence.
A) AAA
B) AAS
C) ASA
D) Not necessarily congruent
C) ASA
500
Classify the following triangle with coordinates, A(1,3) T(6,3) and R(2,1). Select all that apply
acute
right
obtuse
isosceles
scalene
equilateral
right
scalene
500
What is the value of x?
11
12
13
14
13