The aspect ratio

The aspect ratio of the rectangular triangle is 13:12:5. Calculate the internal angles of the triangle.

Correct answer:

A =  90 °
B =  67.3801 °
C =  22.6199 °

Step-by-step explanation:

a:b:c=13:12:5 a=13x b=12x c=5x  a2=b2+c2 (13x)2=(12x)2+(5x)2 132=122+52 169=144+25 169  A=90=90
sinB=ab=13x12x  B=π180°arcsin(12/13)=67.3801=67°2249"

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Tips for related online calculators
Check out our ratio calculator.
See also our right triangle calculator.
See also our trigonometric triangle calculator.

We encourage you to watch this tutorial video on this math problem: video1   video2

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