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Math Terms
terms for the K&E final 8/9 exam
24
Mathematics
7th Grade
01/24/2012

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Cards

Term
Circumferance
Definition
The distance around a circle
Term
Perimeter
Definition
The distance around a shape
Term
Formula for Circumferance
Definition
C=∏D
Term
Formula for Area of Circle
Definition
A=∏r2
Term
Formula for Area of a square or rectangle
Definition
A = L x H
Term
Obtuse Angle
Definition
and angle greater than 90 degrees
Term
Straight angle
Definition
exactly 180 degrees
Term
Accute Angle
Definition
less than 90 degrees
Term
Right angle
Definition
exaclty 90 degrees
Term
Equilateral triangle
Definition
All 3 sides and all 3 angles are equal
Term
Isocoles Triangle
Definition
2 equal angles and 2 equal sides
Term
Scalene Triangle
Definition
no equal sides or equal angles
Term
Number of degrees in a circle
Definition
360 degrees
Term
Number of degrees on a straight line
Definition
180 degrees
Term
Another word for a four sided shape
Definition
quadralateral
Term
How many sides in a hexagon
Definition
6
Term
How many sides in a pentagon
Definition
5
Term
Vertix or Vertices
Definition
a corner
Term
Angles on a line must add up to
Definition
180 degrees
Term
When you a square a number
Definition
you multiply it by itself
Term
Diameter
Definition
the distance across a circle
Term
Radius
Definition
the distance half way across a circle
Term
If you are given a diameter and you need to know the radius what do you do?
Definition
divide the diameter by 2
Term
If you are given the radius and you need to know the diameter what do you do?
Definition
multiply the radius by 2
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