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IC3 Ch.7 Vocab.
| Question | Answer |
|---|---|
| transversal | a line that crosses two or more other lines in the same plane at different points |
| supplementary angles | two angles whose measures add up to exactly 180 degrees |
| complementary angles | two angles whose measures add up to exactly 90 degrees |
| interior angles | an angle formed on the inside of a shape by two adjacent sides |
| exterior angles | angle between any side of a shape and a line extended from the next side |
| leg | one of the two shorter sides of a right triangle that meet to form the 90-degree right angle |
| right triangle | a triangle that has one interior angle measuring exactly 90 degrees |
| triangle sum theorem | the three interior angles of any triangle always add up to 180 degrees |
| remote interior angles | the two inside angles of a triangle that do not touch or share a vertex with a given exterior angle |
| angle-angle similarity theorem | if two angles of one triangle are equal in measure to two angles of another triangle, then the two triangles are similar |
| right triangle theorem | which states that the square of the hypotenuse equals the sum of the squares of the two legs (a^2 + b^2 = c^2) |
| square root | a value that, when multiplied by itself, gives the original number |
| hypotenuse | the longest side of a right triangle, located directly opposite the 90-degree right angle |
| rational number | any number that can be written as a simple fraction using two integers, where the bottom number (the denominator) is not zero |
| irrational number | a real number that cannot be written as a simple fraction or ratio of two integers (example: pi) |
| terminating decimal | a decimal number that has a fixed, countable number of digits after the decimal point and does not go on forever |
| non-terminating decimal | a number with digits after the decimal point that continue forever without ending |
| repeating decimal | a number whose decimal representation has a digit or group of digits that repeats forever |
| non-repeating decimal | an infinite decimal number where the digits after the decimal point do not repeat in a repeating pattern |