The right triangle

In the right triangle ABC with a right angle at C, we know the side lengths AC = 9 cm and BC = 7 cm. Calculate the length of the remaining side of the triangle and the size of all angles.

Correct answer:

c =  11.4018 cm
A =  37.875 °
B =  52.125 °

Step-by-step explanation:

b=9 cm a=7 cm c2=a2+b2  c=a2+b2=72+92=130=11.4018 cm
sinA=a/c  A=π180°arcsin(a/c)=π180°arcsin(7/11.4018)=37.875=37°5230"

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Tips to related online calculators
Pythagorean theorem is the base for the 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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