 | Term | Definition |
| |
the sum of the measures of the angles on one side of a straight line = |
180° |
| |
Area of a triangle = |
1/2 base x height |
| |
Area of a circle = |
∏r² |
| |
A chord is |
a line segment joining 2 points on a circle |
| |
Circumference of a circle = |
∏d or 2∏r |
| |
∏ is the ratio of |
the circle's circumference to it's diameter or C/D |
| |
A sector is |
a pie shaped portion of a circle |
| |
Area of a sector= |
(angle°/360°)(∏r²) |
| |
Area of trapezoid= |
1/2 h (b1+b2) |
| |
Area of parallelogram= |
bh |
| |
Volume of Cone or Pyramid= |
1/3 area of base x height |
| |
Volume of Prism or Cylinder= |
area of base x height |
| |
perimeter |
distance around the outside of a figure |
| |
circumference |
the perimeter of a circle; distance around the outside of a circle |
| |
area |
the surface covered by a shape |
| |
volume |
the amount of space inside a 3-dimensional figure |
| |
cubic units |
the units volume is measured in |
| |
square units |
the units area is measured in |
| |
surface area |
the sum of the areas of all faces in a 3-dimensional figure |
