Triangles

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Across
  1. 5. The interior measure formed by two sides.
  2. 7. No sides have the same length
  3. 8. One of the line segments connecting the vertices of a triangle.
  4. 9. Two angles in the triangle are always acute, the third is 90 degrees.
  5. 10. Two angles in the triangle are always acute, the third is greater than 90 degrees.
Down
  1. 1. In a right triangle, the side opposite the right angel. It is the longest side.
  2. 2. Two sides have the same length, and the third is different.
  3. 3. All three sides have the same length.
  4. 4. In a right triangle, the sides adjacent to the right angle.
  5. 5. All angles are less than 90 degrees.
  6. 6. A 3-sided polygon.