OpenStax, Prealgebra 2e §9.4 Use Properties of Rectangles, Triangles, and Trapezoids · Try It 21 · Algebra · Algebra word problems

Use Properties of Rectangles, Triangles, and Trapezoids · Try It 21

Find the length of each side of an equilateral triangle with perimeter $39$ inches.

~5 minWritten answer · compare with the solution

OpenStax, Prealgebra 2e · §9.4 Use Properties of Rectangles, Triangles, and Trapezoids · Try It 21

Stuck? A gentle nudge

No hints for this one.

Something off?

Workspace

Your working

Check your full solution

Upload photos of your handwritten work or a PDF, and Lemma will read it and tell you whether it's right — and where it first goes wrong if not.