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17 Cards in this Set
- Front
- Back
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What do you call two lines that form a 90 degree angle when they cross? |
perpendicular |
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What do you call the distance from the center of the circle to the curve? |
radius |
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What do you call a triangle with two sides of equal length? |
isosceles |
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What do you call the distance across the circle through the center? |
diameter |
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What do you call the length around the curve of a circle? |
circumference |
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What do you call the distance around the edge of a polygon? |
perimeter |
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What do you call the point where two sides of a polygon meet? |
vertex |
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How do you know if a number is divisible by 9? |
the sum of the digits is divisible by 9 |
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A triangle in which all three sides are different lengths. |
scalene |
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How do you know if a number is divisible by 3? |
if the sum of the digits is divisible by 3 |
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If a number is divisible by 2 and 3, then it is also divisible by what number? |
6 |
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What is the answer to a division question called? |
quotient |
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What is the answer to a multiplication question called? |
product |
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What is the answer to a subtraction question called? |
difference |
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What is the answer to an addition question called? |
sum |
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What do you call lines that never cross? |
parallel |
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What do you call a triangle with three sides of equal length? |
equalateral |
