Interior angles

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

Correct answer:

A =  40 °
B =  60 °
C =  80 °

Step-by-step explanation:

A+B+C=180  A:B:C=2:3:4 A=2d B=3d C=4d  2d+3d+4d=180  d=1802+3+4=20  A=2 d=2 20=40
B=3 d=3 20=60

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