Interior angles

Calculate the interior angles of a triangle that are in the ratio 2: 3: 4.

Correct result:

A =  40 °
B =  60 °
C =  80 °

Solution:

A+B+C=180∘  d=1802+3+4=20∘  A=2⋅ d=2⋅ 20=40∘
B=3⋅ d=3⋅ 20=60∘
C=4⋅ d=4⋅ 20=80∘

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