## www.galwaymathsgrinds.com Revision Crossword

##### Across

**4.** In a right triangle, the ratio of the opposite side to the adjacent side.
**7.** Statistical measure that shows how pairs of variables are related.
**10.** Another name for the x coordinate.
**12.** The likelihood of an event occurring.
**14.** A region of a circle often called a pie slice.
**16.** A set of data involving one variable.
**17.** A sentence stating two expressions are equal.
**18.** Distance around the outside.
**19.** The average.
**21.** An equation that contains more than one variable.
**25.** The ratio of vertical change to horizontal change.
**26.** Data involving two variables.
**28.** A first degree equation.
**30.** Polygon with 10 sides.
**31.** An angle whose measure is less than 90 degrees.
**32.** To use given data to estimate a value between known values.
**36.** Data that occurs most frequently in a data set.
**37.** A solution to an equation f(x)=0.
**38.** A quadrilateral with exactly one pair of parallel sides.
**39.** A relation where each x value has only one y value.
**40.** Another name for the x coordinate.
**42.** Polygon with 9 sides.

##### Down

**1.** Set of points equidistant from a given point.
**2.** The mathematical symbol designated by an exclamation mark.
**3.** Coplanar lines that do not intersect.
**5.** A type of notation used to express very large or very small numbers.
**6.** A polynomial with exactly three terms.
**7.** The elements of a universe not contained in a given set.
**8.** Polygon with 5 sides.
**9.** Set of numbers {...-3,-2,-1,0,1,2,3,...}
**10.** Polygon with 8 sides.
**11.** The longest side in a right triangle.
**13.** type of equation in which the highest index is 2.
**15.** half a diameter
**20.** A unit for measuring fluid volume.
**21.** The middle of an arranged data set.
**22.** A type of diagram showing relationships among sets.
**23.** To use given data to estimate a value beyond the known values.
**24.** In a right triangle, the ratio of adjacent side to hypotenuse.
**27.** A quantity whose value changes.
**29.** A probability based the assumption that some event that has already occurred.
**33.** Polygon that is both equilateral and equiangular.
**34.** chord through centre of circle
**35.** Polygon with six sides.
**41.** A number or expression that is raised to a power.