WGU D128 2026 ACTUAL EXAM
QUESTIONS WITH VERIFIED SOLUTIONS
GRADED A+
◉Irregular Polygon. Answer: A polygon whose sides are not all equal
and whose angles have different measures
◉Central Angle. Answer: Shape formed when 2 lines of rays meet
with vertex; only at the center point of the circle
◉Legs. Answer: The sides of a right triangle not opposite the right
angle
◉Isosceles triangle. Answer: A triangle with two equal sides and two
equal corresponding angles
◉Center. Answer: The point from which all the points on a circle are
equidistant
◉Pentagon. Answer: A polygon with 5 sides and 5 angles
,◉Bisect. Answer: To divide into two equal parts
◉Square. Answer: A quadrilateral with four equal sides and four 90
degree angles
◉Diameter. Answer: The distance from one side of a circle to the
other side that passes through the center point
◉Vertical Line. Answer: A line that runs up and down on the
coordinate plane, parallel to the y-axis
◉Parallelogram. Answer: Quadrilateral with opposite, parallel, equal
sides and equal opposite angles
◉Y-axis. Answer: The vertical line that passes through the origin on
a coordinate plane
◉Equilateral triangle. Answer: A triangle with three equal sides and
three angles of 60 degrees each
◉Regular polygon. Answer: A polygon with equal sides and equal
angles
◉Degrees. Answer: The units in which angles are measured
, ◉Perpendicular. Answer: Describes lines intersecting each other to
form a 90 degree or right angle
◉Coordinate plane. Answer: A tool used for graphing that is a
display of a two dimensional plane
◉Vertex. Answer: A point where two line segments meet to form an
angle
◉Trapezoid. Answer: Quadrilateral with one pair of parallel
opposite sides
◉Parallel. Answer: Two lines, line segments, rays or planes that are
the same distance from one another and never intersect
◉Right angle. Answer: An angle of 90 degrees
◉Supplementary angles. Answer: Two angles whose sum is equal to
180 degrees
◉Ray. Answer: A line with a single endpoint that extends infinitely in
the other direction
QUESTIONS WITH VERIFIED SOLUTIONS
GRADED A+
◉Irregular Polygon. Answer: A polygon whose sides are not all equal
and whose angles have different measures
◉Central Angle. Answer: Shape formed when 2 lines of rays meet
with vertex; only at the center point of the circle
◉Legs. Answer: The sides of a right triangle not opposite the right
angle
◉Isosceles triangle. Answer: A triangle with two equal sides and two
equal corresponding angles
◉Center. Answer: The point from which all the points on a circle are
equidistant
◉Pentagon. Answer: A polygon with 5 sides and 5 angles
,◉Bisect. Answer: To divide into two equal parts
◉Square. Answer: A quadrilateral with four equal sides and four 90
degree angles
◉Diameter. Answer: The distance from one side of a circle to the
other side that passes through the center point
◉Vertical Line. Answer: A line that runs up and down on the
coordinate plane, parallel to the y-axis
◉Parallelogram. Answer: Quadrilateral with opposite, parallel, equal
sides and equal opposite angles
◉Y-axis. Answer: The vertical line that passes through the origin on
a coordinate plane
◉Equilateral triangle. Answer: A triangle with three equal sides and
three angles of 60 degrees each
◉Regular polygon. Answer: A polygon with equal sides and equal
angles
◉Degrees. Answer: The units in which angles are measured
, ◉Perpendicular. Answer: Describes lines intersecting each other to
form a 90 degree or right angle
◉Coordinate plane. Answer: A tool used for graphing that is a
display of a two dimensional plane
◉Vertex. Answer: A point where two line segments meet to form an
angle
◉Trapezoid. Answer: Quadrilateral with one pair of parallel
opposite sides
◉Parallel. Answer: Two lines, line segments, rays or planes that are
the same distance from one another and never intersect
◉Right angle. Answer: An angle of 90 degrees
◉Supplementary angles. Answer: Two angles whose sum is equal to
180 degrees
◉Ray. Answer: A line with a single endpoint that extends infinitely in
the other direction
