1. An ABC Book of Math Terms

2. By: Kelly McDerby Published by: Rocky Press September 11,2005

3. A Acute angle- is an angle less than 90°. 30°

4. B Bar graph- a graph using bars to show the data.

5. C Complementary angle- two angles equal 90°. 45°

6. D Diameter- the distance between a circle.

7. E Equilateral triangle- all of the sides are equal on the triangle.

8. F Frequency table- shows number of data on the table EVENTTALLYFREQ. Baseball llll 10 Hockey lll 3 Soccer llll ll 7 Football llll llll l 11 Volleyball llll 4 Most Popular Sports

9. G Graph- is the process of placing points on a line.

10. H Histogram- is like a bar graph but the bars are touching.

11. I Integer- the whole number and its opposite. -1,0,1

12. J Joule- if the International System of Units (SI units) are used instead of U.S. customary units of work (ft lbs), work is expressed in N m. Each unit of work in N m is called a Joule. (J) 1J=.74 ft lbs

13. K Kilogram- the base unit of mass in the metric system equivalent 1,000 grams.

14. L Line graph- a graph using to show values change over time.

15. M Mode- the number 1,8,4,4,5,6,5,9,5 that appears more than the other mode- 5 numbers.

16. N Negative integer- a number lower than zero. -4,-3,-2,-1

17. O Obtuse angle- an angle larger than 90 degrees but less than 180 degrees. 120°

18. P Pentagon- a polygon with five sides.

19. Q Quadrilateral- a closed figure four sides and four angles.

20. R Right angle- an angle that is 90 degrees. 90°

21. S Straight angle- an angle that is 180 degrees. 180°

22. T Triangle- a polygon that has three sides and three angles

23. U Upper extreme- the greatest number of a set of data. 1,3,8,6,10,4,4,1,3 Upper extreme=10

24. V Variable- place holder to represent an unspecified value 3 + 6a = 21 a = 3

25. W Whole numbers- numbers after zero 1,2,3,4,5,6,7, 8,9,10

26. X X-axis- the horizontal number line in a coordinate plane. 3 2 1 -3-2123 -2 -3 X-axis

27. Y y-axis- the vertical number line in a coordinate plane. 3 2 1 -3-2 1 123 2 3 Y-axis

28. Z Zero- the number between the positive and negative numbers. 0 -2, -1, 0, 1, 2