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Final: The Largest Angle

Part of the Triangles Without Right Angles section of Coddy's Trigonometry journey. Lesson 37 of 37.

A triangular sail has edges of 13 m, 14 m and 20 m. The sailmaker needs its widest corner.

challenge icon

Challenge

A triangular sail has edges of 13 m, 14 m and 20 m. The sailmaker needs its widest corner.

Find the angle θ across from the 20 m edge, to two decimal places, and press Check.

Try it yourself

Use the figure to find theta

Use the figure to find theta

All lessons in Triangles Without Right Angles