Across
- 5. when 2 figures are the same shape and size but are allowed in different positions; 1 shape can become another using turns, flips and/or slides
- 6. the distance from the center to the circumference of a circle; the line segments of a circle or sphere from its center to its perimeter
- 7. the trigonometric function that is equal to the ratio of the side opposite a given angle in a right triangle to the hypotenuse; an inverse trigonometric function
- 8. the figure formed by two rays meeting at a common end point; the amount of turn between two lines around their common point
- 9. triangle, a triangle in which one of the interior angles measures more than 90° degrees; a triangle with one obtuse angle and two acute angles
- 12. the perimeter of a circle; the complete distance around a circle or a closed curve
- 16. the reciprocal of the tangent; when used for a angle it is the length of the adjacent side divided by the length of the side opposite the angle
- 17. a polyhedron with two parallel faces called bases; a 3 dimensional shape with two identical shapes facing each other
- 18. a mathematical constant; the ratio of a circle's circumference to its diameter
Down
- 1. a branch of mathematics that studies relationships between side lengths and angles of triangles; the mathematics division associated with specific functions of angles and their application to calculations
- 2. the distance from one point on a circle through the center to another point on the circle; any straight line segment that passes through the center of the circle and whose endpoints lie on the circle
- 3. the longest side of a right-angled triangle; the side of a triangle opposite to a right angle
- 4. the trigonometric function that is equal to the ratio of the side adjacent to an acute angle in a right-angled triangle to the hypotenuse; a inverse trigonometric function
- 7. a perfectly round three-dimensional object; a geometrical object in 3 dimensional space that is the surface of a ball
- 8. triangle, a type of triangle in which all the three internal angles of the triangle are acute; a triangle that has all angles less than 90°
- 10. angle, when two straight lines intersect each other at 90˚; one quarter of a full revolution
- 11. the reciprocal of the cosine; when used for a angle it is the length of the hypotenuse divided by the length of the adjacent side
- 13. the reciprocal of the sine; when used for a angle it is the length of the hypotenuse divided by the length of the side opposite the angle
- 14. a closed solid that has two parallel, usually circular bases connected by a curved surface; one of the most basic of curvilinear geometric shapes
- 15. function, a function that "reverses" another function; a function which undoes another function's action