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Name: Introduction to Geometry Vocabulary Write the letter of the correct match next to each problem. 1. Midpoint 2. Hypotenuse 3. Ray Congruent Angles Coordinate Plane 4. 5. 6. Radius 7. Diameter a. A plane that is divided into four regions by a horizontal line (x-axis) and a vertical line (y-axis) b. a part of a line that starts at an endpoint and extends forever in one direction. c. Points that lie on the same line d. The common endpoint of an angle e. Angles that have the same measure f. A segment that passes through the center of the circle and whose endpoints are on the circle. g. A= r h. A segment from a vertex that forms a right angle with the line containing the base i. An Angle that measures greater than 0 degrees and less than 90 degrees. j. The distance around a circle. C= 2 r 8. Acute Angle 9. 10. Coordinate Circumference of a Circle 11. Height k. An angle that measures exactly 90 degrees. 12. Vertex l. The absolute value of the difference of the coordinates 13. Distance 14. Right Angle m.A segment whose endpoints are the center of the circle and a point on the circle. n. The part of the line consisting of two points and all points between them 15. Segment o. The side across from the right angle. Collinear p. Two angles in the same plane with a common vertex and a common side, but no common interior points 16. 17. Obtuse Angle 18. Adjacent Angles q. An angle that measures greater than 90 degrees and less than 180 degrees. r. The number that a point corresponds to. 19. Area of a Circle s. The point that bisects a segment into two congruent segments 20. Angle Bisector t. A ray that divides an angle into two congruent angles.