Types of triangles worksheet generator

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In the produced worksheet, kids will identify triangle types.
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Identify Triangles as


About this worksheet

Suits Years 3 to 6

Triangles to name, under both naming systems: by sides (equilateral, isosceles, scalene) and by angles (right, acute, obtuse).

The insight worth voicing: every triangle owns one name from EACH system, so a right isosceles triangle is a perfectly legal citizen. Two questions per triangle, always.

How to make your worksheet

  1. Give the sheet a title, or keep the one suggested.
  2. Press Generate for a fresh page of triangles.
  3. Print it. Answers included.

Every press of Generate lays out a fresh sheet, ready to print on A4.

Common questions

What do the side names mean?

Equilateral: all three sides equal. Isosceles: two equal. Scalene: all different. Tick marks on the drawings mark the equal sides, so the answer is read, not guessed.

Can a triangle have two right angles?

Never: two 90s spend the whole 180 degree budget before the third angle gets a cent. Asking a child WHY not is a lovely stretch question.