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Right angle, angle
The right angle = 1/4 full circle = 3/2 babylonian unit = π/2 rad = 100 gon = 90° is the unit used in Euclid's Elements.
1 Right angle
is equal to
90 degree
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90
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1.57
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0.25
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0.25
-
0.25
-
0.25
-
0.25
-
1
-
1,600
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1,500
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1,575
-
100
-
100
-
8
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6