Right angle

In a right triangle ABC with a right angle at the apex C, we know the side length AB = 24 cm and the angle at the vertex B = 71°. Calculate the length of the legs of the triangle.

Correct answer:

a =  7.8136 cm
b =  22.6924 cm

Step-by-step explanation:

c=24 cm B=71   cosB=a:c  a=c cosB=c cos71° =24 cos71° =24 0.325568=7.814=7.8136 cm
sinB=b:c  b=c sinB=c sin71° =24 sin71° =24 0.945519=22.692=22.6924 cm

Try calculation via our triangle calculator.




Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
The Pythagorean theorem is the base for the right triangle calculator.
See also our trigonometric triangle calculator.

You need to know the following knowledge to solve this word math problem:


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

Related math problems and questions: