Question | Answer |
ANGLE BISECTOR | A RAY THAT DIVIDES AN ANGLE INTO TWO ANGLES THAT ARE CONGRUENT |
ANGLE OF ELEVATION | WHEN YOU LOOK UP AT AN OBJECT, THE ANGLE THAT YOUR LINE OF SIGHT MAKES WITH A LINE DRAWN HORIZONTALLY |
BASE ANGLES OF AN ISOSCELES TRIANGLE | THE TWO ANGLES THAT ARE ADJACENT TO THE BASE OF AN ISOSCELES TRIANGLES |
EQUIANGULAR | ALL INTERIOR ANGLES CONGRUENT |
EQUILATERAL POLYGON | A POLYGON WITH ALL OF ITS SIDES CONGRUENT |
EXTERIOR ANGLES OF A TRIANGLE | WHEN THE SIDES OF A TRIANGLE ARE EXTENDED, THE ANGLES THAT ARE ADJACENT TO THE INTERIOR ANGLES |
COLLINEAR POINTS | POINTS THAT LIE ON THE SAME LINE |
COMPLEMETARY ANGLES | 2 ANGLES WHOSE MEASURES HAVE THE SUM OF 90 DEGREES |
HEXAGON | A POLYGON WITH 6 SIDES |
CONGRUENT ANGLES | ANGLES THAT HAVE THE SAME MEASURE |
CONGRUENT FIGURES | 2 GEOMETRIC FIGURES THAT HAVE EXACTLY THE SAME SIZE AND SHAPE. |
CONSECUTIVE INTERIOR ANGLES | 2 ANGLES THAT ARE FORMED BY 2 LINES AND A TRANSVERSAL AND LIE BETWEEN THE 2 LINES AND ON THE SAME SIDE |
COPLANAR POINTS | POINTS THAT LIE IN THE SAME PLANE |
HYPOTENUSE | IN A RIGHT TRIANGLE, THE SIDE OPPOSITE THE RIGHT ANGLE |
DECAGON | A POLYGON WITH 10 SIDES |
DILATION | A TRANSFORMATION THAT STRETCHES OR SHRINKS A FIGURES TO CREATE A SIMILAR FIGURE |
DODECAGON | A POLYGON WITH 12 SIDES |
ISOSCELES TRIANGLE | A TRIANGLE WITH AT LEAST 2 CONGRUENT SIDES |
LINE SEGMENT | PART OF A LINE THAT CONSISTS OF 2 POINTS CALLED ENDPOINTS |
MIDPOINT | A POINT THAT DIVIDES,BISECTS, A SEGMENT INTO 2 CONGRUENT SEGMENTS |
N-GON | A POLYGON WITH N SIDES |
OBTUSE ANGLE | AN ANGLE WHOSE MEASURE IS BETWEEN 90 AND 180 DEGREES |
OCTAGON | A POLYGON WITH 8 SIDES |
PARALLEL LINES | TWO LINES THAT DO NOT INTERSECT |
PARALLELOGRAM | A QUADRILATERAL WITH BOTH PAIRS OF OPPOSITE SIDES ARE PARALLEL |
PENTAGON | A POLYGON WITH 5 SIDSES |
PERPENDICULAR BISECTOR | A SEGMENT,RAY,LINE, OR PLANE THAT IS PERPENDICULAR TO A SEGMENT AT ITS MIDPOINT |
PERPENDICULAR LINES | TWO LINES THAT INTERSECT TO FORM A RIGHT ANGLE |
PREIMAGE | THE ORIGINAL FIGURE IN A TRANSFORMATION |
PROOF | A LOGICAL ARGUMENT THAT SHOWS A STATEMENT IS TRUE |
QUADRILATERAL | A POLYGON WITH 4 SIDES |
RAY | PART OF A LINE THAT CONSISTS OF A POINT CALLED AN ENDPOINT AND ALL POINTS ON THE LINE EXTEND IN ONE DIRECTION |
RECTANGLE | A PARALLELOGRAM WITH 4 RIGHT ANGLES |
REDUCTION | A DILATION WITH A SCALE FACTOR BETWEEN 0 AND 1 |
REFLECTION | A TRANSFORMATION THAT USES A LINE OF REFLECTION TO CREATE A MIRROR IMAGE OF THE ORIGINAL FIGURE |
REGULAR POLYGON | A POLYGON THAT HAS ALL SIDES AND ALL ANGLES CONGRUENT |
RHOMBUS | A PARALLELOGRAM WITH 4 CONGRUENT SIDES |
RIGHT ANGLES | AN ANGLE WITH MEASURE EQUAL TO 90 DEGREES |
ROTATION | A TRANSFORMATION IN WHICH A FIGURE IS TURNED ABOUT A FIXED POINT CALLED THE CENTER OF ROTATION |
ROTATIONAL SYMMETRY | A FIGURE CAN BE MAPPED ONTO ITSELF BY A ROTATION OF 180 DEGREES OR LESS ABOUT THE CENTER OF THE FIGURE |
SCALE FACTOR OF A DILATION | THE RATIO OF A SIDE LENGTH OF THE IMAGE TO THE CORRESPONDING SIDE LENGTH OF THE ORIGINAL FIGURE |
SEGMENT BISECTOR | A POINT,RAY, LINE, SEGMENT, OR PLANE THAT INTERSECTS A SEGMENT AT ITS MIDPOINT |
SIMILAR POLYGONS | TWO POLYGONS SUCH THAT THEIR CORRESPONDING SIDES ARE PROPORTIONAL AND THEIR CORRESPONDING ANGLES ARE CONGRUENT |
SINE | OPPOSITE/HYPOTENUSE |
COSINE | ADJACENT/HYPOTENUSE |
TANGENT | OPPOSITE/ADJACENT |
SKEW LINES | LINES THAT DO NOT INTERSECT AND ARE NOT COPLANAR |
SQUARE | A PARALLELOGRAM WITH FOUR CONGRUENT SIDES AND FOUR RIGHT ANGLES |
STRAIGHT ANGLE | AN ANGLE WHOSE MEASURE EQUAL TO 180 DEGREES |
SUPPLEMENTARY ANGLES | TWO ANGLES WHOSE SUM IS 180 DEGREES |
TRANSLATION | A TRANSFORMATION THAT MOVES EVERY POINT OF A FIGURE THE SAME DISTANCE IN THE SAME DIRECTION |
TRAPEZOID | A QUADRILATERAL WITH EXACTLY ONE PAIR OF PARALLEL SIDES CALLED BASES |
TRANSVERSAL | A LINE THAT INTERSECTS TWO OR MORE COPLANAR LINES AT DIFFERENT POINTS |
TRIANGLE | A POLYGON WITH 3 SIDES |
VERTICAL ANGLES | TWO ANGLES WHOSE SIDES FORM TWO PAIRS OF OPPOSITE RAYS |