math terms

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What do you you call the distance all the way across a circle through the center?

What measures the distance around an object?

what is another name for a number?

How many millimeters are in a centimeter?

What kind of triangle has 2 sides the same length?

What type of triangle has no sides the same length?

What do you call a part of a line?

What measures the distance to the center of a circle?