Rectangle 3-4-5

The sides of the rectangle are in a ratio of 3:4. The length of the rectangle diagonal is 20 cm. Calculate the content of the rectangle.

Correct result:

S =  192 cm2

Solution:

u=20 32+42=52 a=3/5 u=3/5 20=12 b=4/5 u=4/5 20=16 S=a b=12 16=192 cm2



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Tips to related online calculators
Check out our ratio calculator.
Pythagorean theorem is the base for the right triangle calculator.
Do you want to convert length units?
See also our trigonometric triangle calculator.

 
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