Vocabulary
Angles
Shapes
Triangles
Line Symmetry
100
What is the term for two lines that intersect to form right angles
Perpendicular Lines
100
Draw an obtuse angle and label it <RTG
Answers vary
100
What is the definition of a quadrilateral?
A shape with 4 sides
100
What are the three triangles we can classify by their angles?
Acute triangle, obtuse triangle, right triangle
100
B
200
What is the term for a line with one endpoint and one arrow?
Ray
200
How many degrees does a right angle measure?
90 degrees
200
Which figure does not appear to have parallel lines?
A
200
What are the three triangles we can classify by their sides?
Equilateral, Scalene, Isosceles
200
True of False:
A heart only one line of symmetry.
True
300
A triangle that all sides are different lengths
Scalene Triangle
300
Which angles create a 90 degree angle when combined together?
<DEF and <GHI
300
Which figure are all the angles acute?
B
300
Classify the following triangle by its sides
D. Scalene triangle
300
True or False:
A rectangle only has one line of symmetry.
False
400
A term for a geometric figure that is a straight path that goes on forever in both directions.
Line
400
When different items are poured, they form a pile in the shape of a cone. The diagram shows a pile of sand. What is the angle the sand makes with the ground?
40 degrees
400
What is the definition of a parallelogram AND a non-parallelogram?
A parallelogram is a shape that has 2 sets of parallel sides. A non-parallelogram has only 1 set of parallel sides.
400
Classify the triangle by its sides
B. Isosceles
400
How many lines of symmetry are in a square?
4
500
A set of lines that will never touch
Parallel Lines
500
How many degrees are in a straight line?
180 degrees
500
A trapezoid is a quadrilateral with exactly ___________ pair of ___________ opposite sides.
1 pair of parallel opposite sides
500
How many degrees does each triangle measure total? (if you add all three angles together)
180 degrees
500
Does this shape have a line of symmetry?
No