Final: A Plot of Land
Part of the Triangles Without Right Angles section of Coddy's Trigonometry journey. Lesson 35 of 37.
A triangular plot of land has an area of 60 m². Two of its edges are 15 m and 11 m long, and the surveyor wants the angle between them.
Challenge
A triangular plot of land has an area of 60 m². Two of its edges are 15 m and 11 m long, and the surveyor wants the angle between them.
Find every possible angle θ between those two edges, to two decimal places, and press Check.
Try it yourself
Use the figure to find theta
Test yourselfThis lesson includes a short quiz. Start the lesson to answer it and track your progress.
All lessons in Triangles Without Right Angles
7Bearings and Navigation
Reading BearingsTwo Ships From PortTurning Off CourseFinding a Course AngleRecap: Ships at Sea8Final Challenges
Final: Across the CanyonFinal: Every TriangleFinal: A Plot of LandFinal: Ship and PlaneFinal: The Largest Angle