Skip to content
LessonPrint

Parallel and Perpendicular Sides is a free printable Grade 4 math worksheet on sorting shapes by whether they have perpendicular sides, only parallel sides, or neither, aligned to Common Core standard 4.G.A.2. It prints 5 questions with an answer key on its own sheet of paper, in 25 versions that each ask different questions, so no two students in the class work from the same page. Print it from the browser or download it as a PDF — no account, no email.

Set 16 of 25 · the same problems every time you open this link.

Next set

One paper per student

12345678910111213141516171819202122232425

Set 1 has all 25 in a single PDF. All 25 sets ask different questions.

Parallel and Perpendicular Sides

4.G.A.2

NameDate

Sort each one into the right box.

1.Sort each one into the right box.

Sort: a parallelogram with no square corners, regular hexagon, a triangle with no square corner, rectangle

Has perpendicular sidesParallel sides, none perpendicularNeither
2.Sort each one into the right box.

Sort: a triangle with no square corner, right triangle, rectangle, a trapezoid with two square corners

Has perpendicular sidesParallel sides, none perpendicularNeither
3.Sort each one into the right box.

Sort: a trapezoid with two square corners, a parallelogram with no square corners, right triangle, rectangle

Has perpendicular sidesParallel sides, none perpendicularNeither
4.Sort each one into the right box.

Sort: right triangle, regular pentagon, regular hexagon, a triangle with no square corner

Has perpendicular sidesParallel sides, none perpendicularNeither
5.Sort each one into the right box.

Sort: square, a trapezoid with two square corners, regular hexagon, a parallelogram with no square corners

Has perpendicular sidesParallel sides, none perpendicularNeither

LessonPrint · 4.G.A.2 · Set 16 · free to copy for classroom use

Answer key — Parallel and Perpendicular Sides

Set 16. Prints on its own sheet.

  1. 1.Has perpendicular sides: rectangle; Parallel sides, none perpendicular: a parallelogram with no square corners, regular hexagon; Neither: a triangle with no square corner
  2. 2.Has perpendicular sides: right triangle, rectangle, a trapezoid with two square corners; Parallel sides, none perpendicular: —; Neither: a triangle with no square corner
  3. 3.Has perpendicular sides: a trapezoid with two square corners, right triangle, rectangle; Parallel sides, none perpendicular: a parallelogram with no square corners; Neither: —
  4. 4.Has perpendicular sides: right triangle; Parallel sides, none perpendicular: regular hexagon; Neither: regular pentagon, a triangle with no square corner
  5. 5.Has perpendicular sides: square, a trapezoid with two square corners; Parallel sides, none perpendicular: regular hexagon, a parallelogram with no square corners; Neither: —

Last reviewed 2026-09-05. Aligned to 4.G.A.2 of the Common Core State Standards for Mathematics.