| A | B |
|---|
| What is the formula for the area of a rectangle | A= Length x Width |
| What is the formula for the area of a parallelogram | A = Base x Height |
| What is the formula for the area of a triangle | A = Base x Height / 2 |
| What is the formula for the area of a circle | A = pi x r squared, if you have diameter you must cut in 1/2 to get r |
| What is formula for Surface Area | A = 2 x (L x W) + (W x H) + (L x H |
| Perimeter of a rectangle | P = 2(L + W) |
| Circumference of a circle | C = Pi x diameter |
| Volume of a rectangular prism | V = L x W x H |
| Diameter is how many times the radius? | 2 |
| Radius equals______ the diameter | 1/2 |
| area is recorded in _________ measure | square ( to the power of 2) |
| volume is recorded in _________ measure | cubic (to the power of 3) |
| perimeter and circumference are _________ and you do not use sq. or cu. | linear |
| congruent sides: congruent angles | Equilateral triangle |
| two congruent sides with all the acute angles | acute isosceles |
| obtuse isosceles | two congruent sides with one obtuse angle |
| acute scalene | no congruent sides with all acute angles |
| obtuse scalene | no congruent sides with one obtuse angle |
| right triangle | can be isosceles or scalene but must have right angle |
| two dimensional figures | closed plane figures which have only two dimensions (no height) |
| polygons | two dimensional figures with 3 or more sides |
| triangles | 3 sides: sum of angle measures = 180 degrees |
| equilateral triangle | congruent sides: congruent angles |
| quadrilaterals | 4 sides: sum of anle mesures = 360 degrees |
| rectangle | opposite sides congruent opposite sides parallel 4 right angles |
| square | all sides congruent , opposite sides parallell, 4 right angles |
| parallelogram | opposite sides congruent, opposite sides parallell, opposite angles congruent--no right angles |
| rhombus | all sides congruent, opposite sides parallel, opposite angles congruent--no right angles |
| trapezoid | only ONE pair of parallel sides, opposite angles congruent, no right angles, congruency of sides and angles NOT a requirement |
| Formula for a Trapezoid | A = H (base + base) divided by 2 |
| Pentagon | 5 sides |
| Hexagon | 6 sides |
| heptagon | 7 sides |
| octogon | 8 sides |
| nonogon | 9 sides |
| decagon | 10 sides |
| to determine measure of angles in a polygon | sides - 2 x 180 = total # of degrees Total # of degrees divided by total sides = angle measure |
| obtuse angle | more than 90 degrees |
| right angle | exactly 90 degrees |
| acute | less than 90 degrees |
| straight angle | 180 degrees |
| angles are named for their________ | vertex |
| the vertex is always the ________ letter | middle |
| Def. Adjacent angles | two or more angles which share a common line segment |
| Def. Bisector | a line segment which cuts and angle intow two equal adjacent angles |
