Triangles Make All Angles

Lesson by

Comments 15Lesson NotesDownloads 5

Triangles Make All Angles

Lesson by

Marshall Vandruff

in The Perspective Course

Comments 15Lesson NotesDownloads 5

Marshall Vandruff

In this lesson, I'll break down how to use triangles to create accurate angles in 15-degree increments, covering angles from 0 to 180 degrees. I’ll demonstrate how flipping and combining simple 30/60 and 45/90 degree triangles can yield various angles, like 135, 120, 150, and even specific ones like 15 or 75 degrees. These techniques are practical for understanding angles in freehand perspective drawing without memorization, though familiarity with these increments can improve precision.

Sarah NP

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58m

Brilliant AND funny! Thanks Marshall.

@lucastoonz86

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I like my compass but it does damage the paper. I used 22.5 degree increments on top and 15 degree increments on bottom.

Katie

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My supernatural ability to do math only as it pertains to art is constant. I found myself having so much fun puzzling triangles together that I kept going, haha!

Randy Pontillo

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18h

This 5 minute video taught me more about angles than the entirety of my school career

Lucie VERGNON

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11h

Same 🤣

Nassim A.

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20h

To better understand this lesson, I tried to find on my own ways to add the 15° increments using only 45° and 60° squares. My brain melted.. But it was interesting to find out that there are several ways to get the same angles! (at least if I did it right ^^')

John

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22h

This was awesome, thank you Marshall. I tried using my triangles during the Isometic Optical Illusion homework assignment and was struggling in a dramatic fashion (many huffs and puffs). This was a very helpful illustration that I will practice a bunch!