Mathematics · Explorer

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Interior anglesRunning
Angle lock. Third angle at 128.8 °. Angle sum 240.8 °, Triangle total 180 °. Currently angle sum is over by 60.8 °.TUNING112°128.8°
t = 0.0s

Angle sum

240.8°

Triangle total

180°

Angle sum is over by 60.8 °

128.8 °

Angle lock. Third angle at 128.8 °. Angle sum 240.8 °, Triangle total 180 °. Currently angle sum is over by 60.8 °.

What has to balance∑θ=180∘\sum\theta = 180^\circ

What is happening

You are called to a roof truss being cut on site with one angle unmarked.

The truss will not close. Two angles of the triangle measure 112° together, and the third is cut wrong.