Across
- 2. Ratio of circle's circumference to diameter. Commonly known as 3.14.
- 5. ____ angle has a point on the center of the circle. The ____ angle is equal to the arc angle.
- 7. Angles that are less than 90°. You need 2 of ____ to make complementary angles.
- 9. ____ angles adds up to 180°. Also double of a complementary angles.
- 11. Used to find hypotenuse given 2 sides on a right triangle. a^2+b^2=c^2.
- 12. distance from the center of a circle to the circumference. Half of diameter.
- 14. ____ angles is 90°. 2 of these makes a supplementary and 4 of these makes perpendicular lines.
- 15. Distance from one point to circumferene to the other side of circumference and it has to pass the center point of circle. Twice the length of radius.
- 16. The a in formula of finding a regular polygon 1/2(p)(a). Line from center of a regular polygon to the side that is perpendicular to it.
- 17. lines that intersects and makes right angles. ____ lines have opposite slopes.
- 18. The same in length or angle. A square has 2 pairs of ____ lines.
Down
- 1. Perimeter of a circle. Can be calculated by dπ or 2rπ.
- 3. Angles that are more than 90°. You need at least 1 of these to make supplementary angles if there is no right angles.
- 4. ____ angles add up to 90°. Also half of a supplementary angles.
- 6. Top of a pyramid. The point which the triangles meet.
- 8. 3d shape that has identical 2 base. The sides are rectangles.
- 10. 3d shape that has 1 base. The sides are triangles.
- 11. Never touching lines are ____. 2 pair of this makes a parallelogram.
- 12. A shape where all the sides and angle are congruent. Sum of all exterior angle of a ____ is 360.
- 13. ____ angle has a point on the circumference of a circle. The ____ angle is half the arc angle.