Lemma
MediumRight triangles
OpenStax, Precalculus 2e §5.4 Right Triangle Trigonometry · Review Exercise 105 · Trigonometry · Right triangles

Right Triangle Trigonometry · Review Exercise 105

Solve for the unknown sides of the given triangle.

A 15-ft ladder leans against a building so that the angle between the ground and the ladder is How high does the ladder reach up the side of the building?

~8 minWritten answer · compare with the solution

OpenStax, Precalculus 2e · §5.4 Right Triangle Trigonometry · Review Exercise 105

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.