Question | Answer |
has no size; only location | point |
a flat surface that extends in 4 directions (window) | plane |
continues w/ out end in opposite directions | line |
part of a line w 2 endpoints | lins segmelt |
part of a line w/ 1 endpoint | ray |
lines in the same plane thAT never intersect | parallel lines |
lines that intersect to form 2 right angles | perpendicular lines |
lines that lie in diff. planes , neither parallel or perpendicular | skew lines |
the sum of the angles = 90degrees | complimentary angles |
the sum of the angles=180degrees | supplimentary angles |
2 angles that share a common vertex & a common ray | adjacent angles |
2 angles that are formed by intersecting lines & they only have a common vertex & congruent | vertical angles |
a closed shape formed by line segments that do not intersect | polygon |
segment that connects 2 verticies but is not an edge | diagonal |
all sides congruent(triangle) | equalateral |
2 sides congruent ( triangl) | isosceles |
no congruent sides (triangle) | scalene |
1 right angle & acute angles | right |
3 acute angles... (triangle) | acute |
1 obtuse angle (triangle) | obtuse |
quadrilateral w 2 pairs of parallel lines | parallelogram |
a parallelogram w 4 right angles | rectanle |
a parallelogram w 4 congruent &4 right angles | square |
parallelogram w 4 congruent sides | rhombus |
a quad. w only 1 pair of parallel lines | trapezoid |
line seg. w independent at the circle & the other on the circle | radius |
line seg. w both endpoints on the circle& goes thru the center of circle | diameter |
line seg. w both endpoints on the corcle | chord |
vertex is in the center of the circle of the circle & rays on the end of the circle | central angle |
part of circle; less than half | arc |
exactly 1/2 of the circle | semi-circle |