" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
x-2 - drugi bok
2x+2(x-2)=20
4x-2=20
4x=16| :4
x=4
a=2
b=4
d = √a2 + b2 - przekątna prostokąta
d=√4+16
d=2√5