Formulas
lines
angles
triangles
solving measurement problems
100
Area of a Rectangle
What is Base * Height
100
lines that cross at exactly one point
What are intersecting lines
100
An angle that measures 90 degrees
What is a right angle
100
a triangle with 3 equal sides and 3 equal angles
What is an equilateral triangle
100
The perimeter of a square with a side measuring 8 ft
What is 32 ft
200
Perimeter of a polygon
What is add up all sides
200
two lines in a plane that do not intersect or touch each other at any point
What is parallel lines
200
An angle that measures less than 90 degrees
What is an acute angle
200
a triangle with 2 equal sides and 2 equal angles
What is an isosceles triangle
200
The area of a triangle with a base of 10 cm and a height of 15 cm
What is 75 cm^2
300
area of a triangle
What is 1/2 base x height
300
Lines that intersect and form right angles
What are perpendicular lines
300
An angle that measure more than 90 degrees but less than 180 degrees.
What is an obtuse angle
300
The area of square with a side measuring 5 meters
What is 25 meters^2
400
circumference of a circle
What is pi * diameter
400
A closed piece of line that has two distinct end points.
What is a line segment
400
An angle that measures 180 degrees
What is a straight angle
400
The number of total degrees in a triangle
What is 180
400
The area of a circle with a radius of 5 cm (rounded to the nearest hundredth).
What is 78.54 cm^2
500
area of a circle
What is pi*r^2
500
A line that has a starting point but no end point.
What is a ray
500
Two angles whose sum is 180 degrees
What are supplementary angles
500
A triangle with one 90 degree angle
What is a right triangle
500
The circumference of a circle with a diameter of 20 in
What is 62.8 in
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