Trigonometry Master

About this app

Trigonometry Master is a easy to use app that allows you to quickly calculate unknown sides and angles of any triangle. It will also calculate the area and perimeter and draw the triangle. The app finds the sides, angles, area and perimeter of a triangle based on input parameters. - Right triangle: Enter two values, two sides or a side and an angle, tap Calculate and Trigonometry Master will find remaining values. - Oblique triangle: Enter three values, tap Calculate and Trigonometry Master will do the rest. Valid inputs: • three sides • two sides and an angle • two angles and a side Features: - Solves right triangles. - Solves oblique triangles. - Calculates unknown sides, angles, area and perimeter of a triangle. - Draws a calculated triangle with one click. - Supported angle units: degrees, radians. - 2 input modes based on the required level of visualisation: • Mode 1 (standard mode) - input fields are located above the triangle picture and linked with the picture through the names of sides and angles; • Mode 2 (more visualized mode) - input fields for sides and angles are located directly on the triangle picture so you can easily understand which parameter you are entering. - You can select the desired number of decimal places to adjust the accuracy of the results. - History tape to view your recent calculations. - Back and forward buttons to recall recent calculations. - Sends results and history via email. - 'Undo' for the Clear command. - 7 color schemes. - Portrait and landscape orientation.

Now you can draw the calculated triangle. Updated app translations. Updated app icon. Minor bug fixes.

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1. First observed Aug 23, 2026 · 10:56 AM $12.99