WGU D127 - Mathematics for Elementary
Educators III/ EXAM COMPREHENSIVE | MOST
TESTED QUESTIONS AND ANSWERS GRADED
A+ WITH RATIONALES
line - ..(answers)..A straight one-dimensional figure that extends infinitely in both
directions.
perpendicular - ..(answers)..Describes lines intersecting each other to form a 90
degree, or right, angle.
circle - ..(answers)..The set of all points that are equidistant from a point.
radius - ..(answers)..The distance from the center of a circle or sphere to any point
on the outer edge.
isosceles trapezoid - ..(answers)..Quadrilateral with one pair of parallel opposite
sides (the bases) and another pair of equal opposite sides.
interior angle - ..(answers)..An angle inside a shape between two joined sides.
square - ..(answers)..A quadrilateral with four equal sides and four 90° angles.
regular polygon - ..(answers)..A polygon with equal sides and equal angles.
,central angle - ..(answers)..Shape formed when 2 lines or rays meet with vertex
meets only the center point of the circle.
hypotenuse - ..(answers)..The largest side of a right triangle, opposite the right
angle. Only right triangles have a hypotenuse.
kite - ..(answers)..Quadrilateral with two sets of adjacent equal sides and one set
of equal opposite angles.
reflex angle - ..(answers)..Angles greater than 180°.
vertical line - ..(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 - ..(answers)..Two lines, line segments, rays, or planes that are the same
distance from one another and never intersect.
trapezoid - ..(answers)..Quadrilateral with one pair of parallel opposite sides.
bisect - ..(answers)..To divide into two equal parts.
isosceles triangle - ..(answers)..A triangle with two equal sides and two equal
corresponding angles.
, angle - ..(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 - ..(answers)..Shape formed when 2 lines or rays meet with a
vertex that meets the circumference of a circle.
vertex - ..(answers)..A point where two line segments meet to form an angle.
irregular polygon - ..(answers)..A polygon whose sides are not all equal and whose
angles have different measures.
straight angle - ..(answers)..An angle that measures 180 degrees.
line segment - ..(answers)..Shortest distance between two points; completely
straight with two endpoints.
rectangle - ..(answers)..Quadrilateral with four right angles, equal opposite sides,
and two sets of parallel opposite sides.
sector - ..(answers)..A portion of a circle defined by two radii and an intercepted
arc.
Educators III/ EXAM COMPREHENSIVE | MOST
TESTED QUESTIONS AND ANSWERS GRADED
A+ WITH RATIONALES
line - ..(answers)..A straight one-dimensional figure that extends infinitely in both
directions.
perpendicular - ..(answers)..Describes lines intersecting each other to form a 90
degree, or right, angle.
circle - ..(answers)..The set of all points that are equidistant from a point.
radius - ..(answers)..The distance from the center of a circle or sphere to any point
on the outer edge.
isosceles trapezoid - ..(answers)..Quadrilateral with one pair of parallel opposite
sides (the bases) and another pair of equal opposite sides.
interior angle - ..(answers)..An angle inside a shape between two joined sides.
square - ..(answers)..A quadrilateral with four equal sides and four 90° angles.
regular polygon - ..(answers)..A polygon with equal sides and equal angles.
,central angle - ..(answers)..Shape formed when 2 lines or rays meet with vertex
meets only the center point of the circle.
hypotenuse - ..(answers)..The largest side of a right triangle, opposite the right
angle. Only right triangles have a hypotenuse.
kite - ..(answers)..Quadrilateral with two sets of adjacent equal sides and one set
of equal opposite angles.
reflex angle - ..(answers)..Angles greater than 180°.
vertical line - ..(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 - ..(answers)..Two lines, line segments, rays, or planes that are the same
distance from one another and never intersect.
trapezoid - ..(answers)..Quadrilateral with one pair of parallel opposite sides.
bisect - ..(answers)..To divide into two equal parts.
isosceles triangle - ..(answers)..A triangle with two equal sides and two equal
corresponding angles.
, angle - ..(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 - ..(answers)..Shape formed when 2 lines or rays meet with a
vertex that meets the circumference of a circle.
vertex - ..(answers)..A point where two line segments meet to form an angle.
irregular polygon - ..(answers)..A polygon whose sides are not all equal and whose
angles have different measures.
straight angle - ..(answers)..An angle that measures 180 degrees.
line segment - ..(answers)..Shortest distance between two points; completely
straight with two endpoints.
rectangle - ..(answers)..Quadrilateral with four right angles, equal opposite sides,
and two sets of parallel opposite sides.
sector - ..(answers)..A portion of a circle defined by two radii and an intercepted
arc.
