WGU D128 MATHEMATICS FOR ELEMENTARY EDUCATORS OA EXAMINATION TEST 2026 QUESTIONS WITH SOLUTIONS GRADED A+

WGU D128 MATHEMATICS FOR ELEMENTARY
EDUCATORS OA EXAMINATION TEST 2026
QUESTIONS WITH SOLUTIONS GRADED A+


◉ 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. Answer: a four-sided polygon with interior angles
adding to 360 degrees


◉ Parallelogram. Answer: A quadrilateral with two pairs of parallel sides


◉ square. Answer: A quadrilateral with 4 sides that are equal and has all
90 degree angles


◉ rectangle. Answer: a parallelogram with 4 right angles


◉ Rhombus. Answer: A parallelogram with four congruent sides.