WGU D128 MATHEMATICS FOR ELEMENTARY EDUCATORS OA ACTUAL EXAM PAPER 2026 QUESTIONS WITH SOLUTIONS VERIFIED ANSWERS

WGU D128 MATHEMATICS FOR
ELEMENTARY EDUCATORS OA ACTUAL
EXAM PAPER 2026 QUESTIONS WITH
SOLUTIONS VERIFIED ANSWERS

●● Right angle.
Answer: 90 degrees


●● acute angle.
Answer: less than 90 degrees


●● obtuse angle.
Answer: greater than 90 degrees and less than 180 degrees


●● reflex angle.
Answer: greater than 180 degrees


●● complementary angles.
Answer: Two angles whose sum is 90 degrees


●● supplementary angles.

, Answer: Two angles whose sum is 180 degrees


●● interior angles of a polygon.
Answer: angles inside of a polygon


●● triangle.
Answer: A polygon with three sides whose interior angles equal 180.


●● isosceles triangle.
Answer: A triangle that has 2 equal sides.


●● equilateral triangle.
Answer: a triangle with 3 equal sides (60 degrees)


●● Triangle Inequality Theorem.
Answer: The sum of the lengths of any two sides of a triangle must be
greater than the length of the third side


●● scalene triangle.
Answer: no equal sides


●● quadrilateral.