OpenStax, Prealgebra 2e §9.4 Use Properties of Rectangles, Triangles, and Trapezoids · Exercise 52 · Algebra · Algebra word problems

Use Properties of Rectangles, Triangles, and Trapezoids · Exercise 52

Solve using the properties of triangles.

A triangular courtyard has perimeter of $120$ meters. The lengths of two sides are $30$ meters and $50$ meters. How long is the third side?

Its source prints no answer for this problem, so there's nothing to check against.

~5 minWritten answer · compare with the solution

OpenStax, Prealgebra 2e · §9.4 Use Properties of Rectangles, Triangles, and Trapezoids · Exercise 52

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.