WGU D127 - Mathematics for Elementary Educators III || A+
Guaranteed.
line correct answers A straight one-dimensional figure that extends infinitely in both directions.
perpendicular correct answers Describes lines intersecting each other to form a 90 degree, or
right, angle.
circle correct answers The set of all points that are equidistant from a point.
radius correct answers The distance from the center of a circle or sphere to any point on the outer
edge.
isosceles trapezoid correct answers Quadrilateral with one pair of parallel opposite sides (the
bases) and another pair of equal opposite sides.
interior angle correct answers An angle inside a shape between two joined sides.
square correct answers A quadrilateral with four equal sides and four 90° angles.
regular polygon correct answers A polygon with equal sides and equal angles.
central angle correct answers Shape formed when 2 lines or rays meet with vertex meets only the
center point of the circle.
hypotenuse correct answers The largest side of a right triangle, opposite the right angle. Only
right triangles have a hypotenuse.
kite correct answers Quadrilateral with two sets of adjacent equal sides and one set of equal
opposite angles.
,reflex angle correct answers Angles greater than 180°.
vertical line correct answers A line that runs up and down on the coordinate plane, parallel to the
y-axis. It has no run, or change in x-value.
parallel correct answers Two lines, line segments, rays, or planes that are the same distance from
one another and never intersect.
trapezoid correct answers Quadrilateral with one pair of parallel opposite sides.
bisect correct answers To divide into two equal parts.
isosceles triangle correct answers A triangle with two equal sides and two equal corresponding
angles.
angle correct answers The amount of rotation (often measured in degrees) needed to make one
line segment, ray, or line identical with another line segment, ray, or line.
inscribed angles correct answers Shape formed when 2 lines or rays meet with a vertex that
meets the circumference of a circle.
vertex correct answers A point where two line segments meet to form an angle.
irregular polygon correct answers A polygon whose sides are not all equal and whose angles
have different measures.
straight angle correct answers An angle that measures 180 degrees.
, line segment correct answers Shortest distance between two points; completely straight with two
endpoints.
rectangle correct answers Quadrilateral with four right angles, equal opposite sides, and two sets
of parallel opposite sides.
sector correct answers A portion of a circle defined by two radii and an intercepted arc.
triangle inequality theorem correct answers For every triangle, the sum of any two sides is
always greater than the third side.
parallelogram correct answers Quadrilateral with opposite, parallel, equal sides and equal
opposite angles.
ray correct answers A line with a single endpoint (or point of origin) that extends infinitely in the
other direction.
acute angle correct answers Angles less than 90°.
equilateral triangle correct answers A triangle with three equal sides and three angles of 60
degrees each.
x-axis correct answers The horizontal line that passes through the origin on a coordinate plane.
origin correct answers The point on a coordinate plane where the x-axis and y-axis intersect.
Typically, the point represents 0 on both axes.
center correct answers The point from which all the points on a circle are equidistant.
Guaranteed.
line correct answers A straight one-dimensional figure that extends infinitely in both directions.
perpendicular correct answers Describes lines intersecting each other to form a 90 degree, or
right, angle.
circle correct answers The set of all points that are equidistant from a point.
radius correct answers The distance from the center of a circle or sphere to any point on the outer
edge.
isosceles trapezoid correct answers Quadrilateral with one pair of parallel opposite sides (the
bases) and another pair of equal opposite sides.
interior angle correct answers An angle inside a shape between two joined sides.
square correct answers A quadrilateral with four equal sides and four 90° angles.
regular polygon correct answers A polygon with equal sides and equal angles.
central angle correct answers Shape formed when 2 lines or rays meet with vertex meets only the
center point of the circle.
hypotenuse correct answers The largest side of a right triangle, opposite the right angle. Only
right triangles have a hypotenuse.
kite correct answers Quadrilateral with two sets of adjacent equal sides and one set of equal
opposite angles.
,reflex angle correct answers Angles greater than 180°.
vertical line correct answers A line that runs up and down on the coordinate plane, parallel to the
y-axis. It has no run, or change in x-value.
parallel correct answers Two lines, line segments, rays, or planes that are the same distance from
one another and never intersect.
trapezoid correct answers Quadrilateral with one pair of parallel opposite sides.
bisect correct answers To divide into two equal parts.
isosceles triangle correct answers A triangle with two equal sides and two equal corresponding
angles.
angle correct answers The amount of rotation (often measured in degrees) needed to make one
line segment, ray, or line identical with another line segment, ray, or line.
inscribed angles correct answers Shape formed when 2 lines or rays meet with a vertex that
meets the circumference of a circle.
vertex correct answers A point where two line segments meet to form an angle.
irregular polygon correct answers A polygon whose sides are not all equal and whose angles
have different measures.
straight angle correct answers An angle that measures 180 degrees.
, line segment correct answers Shortest distance between two points; completely straight with two
endpoints.
rectangle correct answers Quadrilateral with four right angles, equal opposite sides, and two sets
of parallel opposite sides.
sector correct answers A portion of a circle defined by two radii and an intercepted arc.
triangle inequality theorem correct answers For every triangle, the sum of any two sides is
always greater than the third side.
parallelogram correct answers Quadrilateral with opposite, parallel, equal sides and equal
opposite angles.
ray correct answers A line with a single endpoint (or point of origin) that extends infinitely in the
other direction.
acute angle correct answers Angles less than 90°.
equilateral triangle correct answers A triangle with three equal sides and three angles of 60
degrees each.
x-axis correct answers The horizontal line that passes through the origin on a coordinate plane.
origin correct answers The point on a coordinate plane where the x-axis and y-axis intersect.
Typically, the point represents 0 on both axes.
center correct answers The point from which all the points on a circle are equidistant.
