WorksheetsTriangle Vocabulary
Total questions: 20
Worksheet time: 33mins
Name
Class
Date
1.
Triangle that has two congruent sides
a)
Isosceles Triangle
b)
Scalene Triangle
c)
Acute Triangle
d)
Obtuse Triangle
2.
Triangle that has three congruent sides
a)
Equilateral Triangle
b)
Acute Triangle
c)
Equiangular Triangle
d)
Exterior Angle
3.
The angle relationship shown is -
a)
complementary angles
b)
supplementary angles
c)
vertical angles
d)
angle bisector
4.
∠1 and ∠3 can best be described as -
a)
complementary angles
b)
supplementary angles
c)
vertical angles
d)
adjacent angles
5.
∠AOB and ∠COB can best be described as -
a)
complementary angles
b)
supplementary angles
c)
vertical angles
d)
adjacent angles
6.
∠XOZ is bisected by ray OY. Which statement is true?
a)
∠XOZ ≅ ∠XOY
b)
∠XOZ ≅ ∠ZOY
c)
∠XOY ≅ ∠ZOY
d)
∠OXY ≅ ∠OZY
7.
The angle relationship shown is -
a)
complementary angles
b)
supplementary angles
c)
vertical angles
d)
adjacent angles
8.
Which would be the best classification for the triangle shown?
a)
acute isosceles
b)
equiangular scalene
c)
equiangular isosceles
d)
equiangular equilateral
9.
Which are pairs of vertical angles?
a)
∠COB & ∠COA
b)
∠AOD & ∠AOC
c)
∠COB & ∠AOD
d)
∠BOD & ∠AOD
10.
The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.
a)
45°
b)
90°
c)
180°
d)
360°
11.
A line or ray that divides an angle into two congruent angles is called?
a)
Median
b)
Altitude
c)
Perpendicular bisector
d)
Angle bisector
12.
State the angle relationship and find the measure of angle 2
a)
Alternate Exterior
127
127
b)
Alternate Exterior
52
52
c)
Alternate Interior
127
127
d)
Alternate Interior
52
52
13.
State the angle relationship and find the measure of angle 1
a)
Alternate Interior
37
37
b)
Alternate Interior
143
143
c)
Corresponding
143
143
d)
Corresponding
37
37
14.
State the angle relationship and find the measure of angle 3
a)
Alternate Interior
50
50
b)
Alternate Interior
130
130
c)
Corresponding
130
130
d)
Corresponding
50
50
15.
State the angle relationship and find the measure of angle ABC
a)
Corresponding
94
94
b)
Corresponding
86
86
c)
Alternate Exterior
94
94
d)
Alternate Exterior
86
86
16.
If lines are parallel, then alternate interior angles are _____________
a)
congruent
b)
parallel
c)
complementary
d)
supplementary
17.
If lines are parallel, then alternate exterior angles are _____________
a)
congruent
b)
parallel
c)
complementary
d)
supplementary
18.
If lines are parallel, then Corresponding angles are _____________
a)
congruent
b)
parallel
c)
complementary
d)
supplementary
19.
Vertical angles are always
a)
acute
b)
total 180 degrees
c)
congruent (equal measures)
d)
adjacent angles
20.
This angle is written as......
a)
∠ABC
b)
∠ACB
c)
∠BCA
d)
∠CAB
100 %
