Calculate 5809

In the ABCD rectangle, the AB side is 16 cm long, and the AC diagonal is 20 cm long. Calculate the perimeter and area of the rectangle.

Correct answer:

o =  56 cm
S =  192 cm2

Step-by-step explanation:

a=16 cm u=20 cm b=u2a2=202162=12 cm o=2 (a+b)=2 (16+12)=56 cm
S=a b=16 12=192 cm2

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

Tips for related online calculators
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

Related math problems and questions: