Basic rigid motions

123456789101112131415161718
Across
  1. 2. An angle which is measuring less than 90 degrees
  2. 5. in the same direction as the way in which the hands of a clock move around
  3. 7. an angle which is greater than 90° and less than 180°
  4. 10. when their measures add to 90 degrees.
  5. 11. a mathematical method used to find unknown measurements of objects that are difficult to measure
  6. 12. triangle a triangle that has two sides of equal length.
  7. 14. the shifting of a figure from one place to another without rotating, reflecting or changing its size
  8. 16. an object that has both a magnitude and a direction
  9. 17. of transversal
  10. 18. When two or more lines pass through a single point, in a plane, they are concurrent with each other and are called concurrent lines
Down
  1. 1. geometric transformation that involves rotating a figure a certain number of degrees about a fixed point
  2. 3. moving in the opposite direction to the direction in which the hands of a clock move
  3. 4. triangle a triangle in which all three sides have the same length.
  4. 5. to have the same shape and size
  5. 6. triangle a triangle in which two sides are perpendicular, forming a right angle.
  6. 8. edge a tool used for drawing straight lines, or checking their straightness.
  7. 9. a semicircular geometry tool divided into 180 equal parts, each measuring 1°.
  8. 10. a technical drawing instrument that can be used for inscribing circles or arcs.
  9. 13. an angle of exactly 90 degrees or. 2 radians corresponding to a quarter turn.
  10. 15. mirror image of the shape.