Chapter 6

2. The basic unit of length in the SI metric system
3. A type of tool used to accurately measure thickness and distances
6. The distance from the center point of a circle to any point on the circle
10. A triangle with one angle greater than 90 degrees
11. The longest side of a right triangle; the side of a right triangle that is opposite the 90-angle
14. A round, closed, two-dimensional shape in which every point is exactly the same distance from the center point
17. The space contained by a three-dimensional shape
18. The area of a three-dimensional shape or object. For straight-sided objects, it is the sum of the areas of all of the sides
19. An equation that allows the length of the third side of a right triangle to be calculated if you know the lengths of the other two sides: A2+B2=C2, where C is the length of the hypotenuse of the right triangle
22. Measuring system used in the United States that employs pounds, feet, and other traditional units; also called the English System
23. A triangle in which all three angles measure less than 90
24. In geometry, the distance from the base to the top of a two-dimensional shape
26. The distance around a two-dimensional shape
27. A line through the center point of a circle that has endpoints on opposite sides of the circle
28. A four-sided shape in which only one set of opposite sides are parallel
29. A triangle with one 90-degree angle

1. The full name for the SI metric system, which is one of two measurement systems used in the United States
4. The ratio of the circumference of a circle to its diameter. PI is a constant value for every circle; usually rounded to 3.1416 or 3.14 for welding calculations
5. In geometry, the length of one of the sides of a straight-sided two-dimensional shape
7. One one-thousandth of a meter
8. The distance around a circle
9. A parallelogram in which all the internal angles are 90 degrees
12. A closed, two-dimensional shape that has three sides
13. A measuring system adopted throughout most of the world. it uses such as the millimeter, kilogram, liter, newton, and Pascal
15. A rectangle in which all the sides are of equal length
16. An 90-degree angle
20. One-hundredth of a meter
21. A triangle in which all three sides are of equal length and all three angles equal 60
23. The space contained by a closed, two-dimensional shape
25. A closed, two-dimensional shape that has four sides; opposite sides are parallel and equal in length