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

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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 kite with no square corners, a triangle with no square corner, right triangle, regular pentagon

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

Sort: right triangle, regular pentagon, a kite with no square corners, a rhombus that is not a square

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

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

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

Sort: square, a triangle with no square corner, a kite with no square corners, equilateral triangle

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

Sort: rectangle, a trapezoid with no square corners, square, regular hexagon

Has perpendicular sidesParallel sides, none perpendicularNeither

LessonPrint · 4.G.A.2 · Set 7 · free to copy for classroom use

Answer key — Parallel and Perpendicular Sides

Set 7. Prints on its own sheet.

  1. 1.Has perpendicular sides: right triangle; Parallel sides, none perpendicular: —; Neither: a kite with no square corners, a triangle with no square corner, regular pentagon
  2. 2.Has perpendicular sides: right triangle; Parallel sides, none perpendicular: a rhombus that is not a square; Neither: regular pentagon, a kite with no square corners
  3. 3.Has perpendicular sides: a trapezoid with two square corners, square; Parallel sides, none perpendicular: regular hexagon; Neither: a kite with no square corners
  4. 4.Has perpendicular sides: square; Parallel sides, none perpendicular: —; Neither: a triangle with no square corner, a kite with no square corners, equilateral triangle
  5. 5.Has perpendicular sides: rectangle, square; Parallel sides, none perpendicular: a trapezoid with no square corners, regular hexagon; Neither: —

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