equilateral A triangle with all three sides of equal length.

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Across
  1. 2. Located across from something else.
  2. 6. A straight line connecting opposite corners of a shape.
  3. 7. A shape with three sides and three angles.
  4. 10. A triangle with all sides of different lengths.
Down
  1. 1. A line that divides something into two equal parts.
  2. 3. A triangle with all three sides of equal length.
  3. 4. An angle that measures exactly 90 degrees.
  4. 5. A straight edge of a shape.
  5. 8. A triangle with two sides that are the same length.
  6. 9. The measurement of how long something is from one end to the other.