MATH Crossword

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Across
  1. 3. To make something clear or easy to understand by speaking or by writing.
  2. 5. To find out exactly by making calculation or by collecting information.
  3. 6. The point at which two line segments meet.
  4. 8. A four-sided shape that has two pairs of parallel lines and do not form right angles.
  5. 9. To calculate or to judge the value.
  6. 11. A four-sided shape whose all four sides are the same and form right angles.
  7. 14. To judge or to calculate roughly or approximately.
Down
  1. 1. The length from one end of the circle through the centre to the other end.
  2. 2. The longest side length of a right triangle.
  3. 4. The sum of all the side lengths outside of a shape.
  4. 7. When two lines or line segments intersect and form right angles they are called ____________ lines.
  5. 8. To show to be true.
  6. 10. The height of a shape.
  7. 11. To prove, to guide, or to explain.
  8. 12. To arrange into types.
  9. 13. The numerical value in the middle when the data set is arranged in order.