Polygons
Triangles
Quadrilaterals
Vocabulary
Random
100
T or F: Some polygons have curved lines.
False
100
T or F: Equlilateral triangles have no congruent sides.
False
100
What is the difference between a trapezoid and a rectangle?
trapezoids do not have right angles and 2 pairs of parallel sides.
100
What is congruent?
the same
100
How do you know sides of a shape are congruent?
tick marks
200
List 2 attributes of a polygon.
Flat, closed figure, straight lines, same number of sides and angles
200
What 2 ways do we classify triangles?
sides and angles
200
T or F: Every square is a parallelogram?
True
200
What is an obtuse triangle?
A triangle with 1 angles measuring over 90 degrees.
200
Can you have more than 1 obtuse angle in a triangle?
No
300
What is the difference between a regular and irregular polygon?
Regular have all sides and angles equal.
300
What is a scalene triangle?
all 3 sides are different lengths
300
List 2 attributes of a rhombus.
4 congruent sides, 2 sets of parallel sides
300
What is parallel?
lines that go i the same direction without intersecting
300
How many sides does an octagon have?
8
400
Draw an irregular pentagon.
Varied
400
A triangle has angles that measure 55 degrees, 72 degrees, and 53 degrees. How do we classify it by sides and angles?
scalene, acute
400
Why is a kite not a parallelogram?
It doesn't have any parallel sides.
400
What is perpendicular?
2 lines that intersect at a 90 degree angle
400
Name 2 parallelograms.
rectangle, square, rhombus
500
Give the hierarchy of a rectangle.
Polygon, quadrilateral, parallelogram, rectangle
500
A triangle has sides theat measure 4cm, 6cm, and 4 cm. What kind of a triangle is it?
isosceles
500
What is the shape? It's a quadrilateral, it has 4 right angles, all 4 sides are congruent, it's a subcategory of another 2-dimensional shape.
Square
500
What is an acute angle?
an angle that measures < 90 degrees
500
If you cut a square in half diagonally, what shape do you create? How do we classify that shape?
triangle - right, isosceles
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