It's a geometry term

Use the less-than sign when one number is smaller than another. Example: a = 3, b = 5, a is smaller than b.

A rational number is a number that can be written as the ratio of two integers (in fraction form). In math, integers and fractions are both generally called rational numbers.

a = 3, b = 3, a is less than or equal to b

Significant figures are all the digits from the first non-zero digit on the left to the last digit, used to reflect the measurement accuracy.

Connected to each other

Refers to when two or more shapes are the same but different in size

Also called volume. It's the strength of sound perceived by the human ear, a subjective sense of how loud the sound is.

In math, a vector is a quantity that has both magnitude and direction, often represented by a line with an arrow, unlike quantities that only have magnitude.

In math, a 'term' is the part of an algebraic expression that's separated by plus or minus signs. It can be a single number, a letter, or a combination of numbers and letters multiplied together, and each term carries its own sign.