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.
Newest
Sarah NP
1h
Brilliant AND funny! Thanks Marshall.
@lucastoonz86
3h
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
4h
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
19h
This 5 minute video taught me more about angles than the entirety of my school career
Nassim A.
21h
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
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!
Martin Vrkljan
22h
That joke... man, I did not expect that. I think I'm beginning to realize what a ride we're all in for with this course. Great stuff, Marshall!
Johannes Schiehsl
1d
Getting familiar with angles also comes in handy in navigation on land, sea and in the air.
@dooby
1d
Anybody know were to buy that circular ruler thingy-mah-bob? It's looks really cool and now I want one
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About instructor
I Write, I Draw, I Teach