Right Triangle Crossword Puzzle:b

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Across
  1. 1. An acute triangle is a triangle with all three angles less than 90°. altitude. close window.
  2. 4. A line passing through the vertex of the angle that cuts it into two equal smaller angles.
  3. 6. Is a branch of mathematics that studies relationships involving lengths and angles of triangles. The field emerged in the Hellenistic world during the 3rd century BC from applications of geometry to astronomical studies.
  4. 8. A theorem in geometry: the square of the length of the hypotenuse of a right triangle equals the sum of the squares of the lengths of the other two sides.
  5. 9. Two lines that meet at a polygon vertex.
  6. 12. Is a generalization of the Pythagorean Theorem, which states that in a right triangle with sides of length we have .
  7. 14. Two figures that share a common shape.
  8. 15. A type of mean or average, which indicates the central tendency or typical value of a set of numbers by using the product of their values (as opposed to the arithmetic mean which uses their sum).
  9. 17. In mathematics, the ____ is a trigonometric function of an angle.
  10. 19. A line that divides a segment into two equal parts.
  11. 20. A line which touches a circle or ellipse at just one point.
  12. 21. A set of three integers a, b, c which form the sides of a right angled triangle.
  13. 22. When two quantities always have the same size in relation to each other.
Down
  1. 2. The ratio of any two corresponding lengths in two similar geometric figures.
  2. 3. A right triangle with some regular feature that makes calculations on the triangle easier, or for which simple formulas exist.
  3. 5. The longest side of a right triangle.
  4. 7. In a right angled triangle, the ______ of an angle is: The length of the adjacent side divided by the length of the hypotenuse. The abbreviation is cos.
  5. 10. A transformation (notation ) that produces an image that is the same shape as the original, but is a different size.
  6. 11. The relationship between two things when the quantities of the two are equal in ratios.
  7. 13. A triangle in which one angle is a right angle (that is, a 90-degree angle). Similar triangles -Two triangles are similar if and only if the corresponding sides are in proportion and the corresponding angles are congruent.
  8. 16. The perpendicular distance from the vertex of a figure to the side opposite the vertex.
  9. 18. Lines that are at right angles (90°) to each other.