Across
- 1. a quadrilateral with opposite sides parallel and equal in length.
- 4. the result of subtraction.
- 7. (exclusive) a quadrilateral with exactly one pair of parallel sides.
- 8. (of a triangle) a side of a triangle from which the height is measured.
- 9. (of a triangle) the perpendicular distance from a base to the opposite vertex.
Down
- 2. a group of numbers, variables, and/or operation symbols that represents a mathematical relationship. An expression without variables, such as 3 1 4, is called a numerical expression. An expression with variables, such as 5b2, is called an algebraic expression.
- 3. to break into parts. You can break apart numbers and shapes.
- 5. the result of multiplication.
- 6. a two-dimensional closed figure made with three or more straight line segments that meet only at their endpoints.
- 7. (inclusive) a quadrilateral with at least one pair of parallel sides.