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Name
Date
Vocabulary
ray
parallelogram
equilateral triangle
line
obtuse triangle
protractor
acute triangle
acute angle
obtuse angle
quadrilateral
perpendicular
intersecting lines
right angle
right triangle
scalene triangle
parallel
vertex
degrees
isosceles triangle
line segment
Matching
Match each definition with a word.
1.
a triangle with one obtuse angle
2.
intersecting at or forming right angles
3.
an angle whose measure is less than 90 degrees
4.
a point of an angle, polygon, or a solid where two or more lines or line segments
meet
5.
a triangle in which all three angles are less than 90
6.
a straight, continuous set of points in a plane that goes on forever in two
directions
7.
A triangle with two congruent sides
8.
angle measuring more than 90 degrees
9.
a triangle with three unequal sides and angles
10.
A mathematical unit used to measure temperature ora ngles.
11.
an angle that is 90°
12.
lines with a point in common
Complete the Sentence
Write the word that best completes each of the following sentences.
13.
An acute angle measures less than ninety ____.
14.
"The floor and the wall make a ____;, Josh said excitedly.
15.
A ____ is a quadrilateral with opposite sides parallel and congruent.
16.
A parallelogram is a ____ with opposite sides parallel and congruent.
17.
When drawing an acute angle, make sure that you use a ____ and it measures
89 degrees or less.
Name
Date
18.
"The ____ has sides of three centimeters, three centimeters, and eight
centimeters", Maricar stated.
19.
"This 43 ____ sure is acute"' exclaimed Charlie.
20.
An ____ has three sixty degree angles.
21.
The horizontal ____ is the line that runs left to right on the page.
Analogies
Complete the analogies.
22.
A.
23.
A.
24.
A.
x-axis : horizontal :: y-axis : _______
hypotenuse
B.
parallel
C.
vertical
D.
arc
lines that never cross each other : parallel :: lines that cross each other and form 90 degree angles :
_______
intersecting
B.
perpendicular
C.
tangent
D.
line segment
C.
big
D.
sharp
line : straight :: circle : _______
heavy
B.
round
Answer Key
1. obtuse triangle
2. perpendicular
3. acute angle
4. vertex
5. acute triangle
6. line
7. isosceles triangle
8. obtuse angle
9. scalene triangle
10. degrees
11. right angle
12. intersecting lines
13. degrees
14. right angle&quot
15. parallelogram
16. quadrilateral
17. protractor
18. isosceles triangle
19. degree angle
20. equilateral triangle
21. line
22. vertical
23. perpendicular
24. round