Show:
FIGURES
TRIANGLES (SIDES)
TRIANGLES (ANGLES)
QUADRILATERALS
DEFINE
100
a three-sided figure
What is a triangle?
100
all sides are equal
What is an equilateral triangle?
100
a triangle with 3 acute angles
What is an acute triangle?
100
a four-sided figure with one pair of parallel sides
What is a trapezoid?
100
corners
What is vertices?
200
any four-sided figure
What is a quadrilateral?
200
a triangle with no sides equal
What is a scalene triangle?
200
a triangle with one right angle
What is a right angle?
200
a four-sided figure with four right angles and four equal sides; opposite sides parallel
What is a square?
200
side
What is an edge?
300
a five-sided figure
What is a pentagon?
300
a triangle with two equal sides
What is an isosceles triangle?
300
a triangle with one obtuse angle
What is an obtuse triangle?
300
a four-sided figure with opposite sides parallel and all sides equal
What is a rhombus?
300
a many sided figure
What is a polygon?
400
a six-sided figure
What is a hexagon?
400
a triangle with sides 3 inches, 4 inches and 5 inches
What is a scalene triangle?
400
a triangle with a 90 degree angle
What is a right triangle?
400
a four-sided figure with opposite sides parallel and opposite sides equal
What is a rectangle?
400
two lines that will never meet
What is parallel?
500
an eight-sided figure
What is an octagon?
500
a triangle with sides 15 cm, 10 cm, and 15 cm
What is an isosceles triangle?
500
a triangle with one angle measuring 91-179 degrees
What is an obtuse triangle?
500
a four-sided figure with opposite sides parallel
What is a parallelogram?
500
any four-sided figure
What is a quadrilateral?