angle |
A shape formed by two lines that intersect or two rays or line segments sharing a common endpoint. An angle has one vertex and two sides. |
diameter |
The distance from one edge of a circle to the opposite edge that passes through the center. The diameter is always twice the length of the radius. |
exponent |
A number or symbol that indicates the number of times a digit should be multiplied by itself. For example, if 4² appears in an equation, four should be multiplied by itself once, which equals sixteen. |
hypotenuse |
In a right triangle, the side located opposite the right angle. The hypotenuse is always the longest side. |
legs |
A side of a right triangle other than the hypotenuse. The legs of the right triangle are represented by the letters a and b in the Pythagorean theorem. |
powers |
A mathematical operation indicating how many times a number is multiplied by itself. Three to the power of 2 is 3 times 3, which equals nine. |
Pythagorean theorem |
A mathematical rule describing how sides of a right triangle are related. The Pythagorean theorem states that the sum of the square of both sides equals the square of the hypotenuse. |
radius |
The distance between a point on a circle and its center. The radius is always half the length of the diameter. |
right triangle |
A triangle containing exactly one 90° angle. Right triangles include two other angles that must total 90 degrees. |
root |
A value indicating how many times a new, unknown value must be multiplied by itself to equal the stated number or variable. A root is an inverse of a power operation. |
square |
A common power in which a number is multiplied by itself once. A square can be expressed by stating the value and then "to the second power" or as the value with the superscript 2 beside it. |
square root |
A mathematical function that shows which unknown number is multiplied by itself one time. The square root of 49 is seven. |
symmetrical |
A quality in which all the features on either side of a print, part, or other component are identical to the other side. Both sides of a symmetrical part or print have the same dimensions. |
tangent |
A line, line segment, or ray that touches a circle at exactly one point. A tangent always forms a right angle with a radius that meets the tangent at the same point on the circle. |
theorem |
A statement that must be proven to be true. The Pythagorean theorem has been proven using a step-by-step, logical process. |
V-block |
A workholding component that is either magnetic or laminated. V-blocks are designed for grinding angles and holding round, square, or rectangular workpieces. |
vertex |
A point where two lines or line segments meet or intersect. A triangle has three vertices. |