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Wk. 15 7th Grade
7th Grade
| Term | Definition |
|---|---|
| scale factor | the ratio of two corresponding sides in a set of similar figures |
| similar figures | when two figures are the same shape and have proportional sides and congruent angles |
| A=bh | area of rectangle and parallelogram |
| A=1/2bh | area of triangle |
| A= 1/2(base 1 + base 2)h | area of trapezoid |
| composite figure | a figure that can be divided into two or more basic shapes |
| radius | the distance from the center of a circle to the side of the circle; half of the diameter |
| diameter | a straight line segment that passes through the center of a circle from one side to the other |
| circumference | the distance around a circle |
| triangle | a three sided polygon with a sum of 180* in the angle measures |