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Scalene Triangle Calculator

Base Length Show Internal Show Details Colour

1: Enter the Longest known side length in the Base Length textbox. 2: Click and drag the apex (yellow circle) to get close to the other 2 side lengths, then release. 3: Use cursor (arrow) keys ◄ ► to adjust one other side to correct length. 4: Hold down left or right ALT key to lock this side and use cursor keys to adjust 3rd side to correct length. Click and Drag the Yellow Circle in the triangle diagram below

Base ↕ ↔ Scale

You can lock a side or angle and animate the other sides and angles to get the triangle dimensions you need.
Hold down Left or Right ALT or CTRL keys to lock a side or angle. A red circle will appear to mark the locked side or angle.
Now use the cursor (Arrow) keys ◄ ► to animate other side and angles.
Hold down the SHIFT key to lock left side base length and use left-right cursor keys to lengthen or shorten right side base.