Stosunek boków prostokąta o obwodzie 30 cm wynosi 3 : 2.Oblicz pole tego prostokąta
a/b = 3/2
2a=3b
a=3/2=1,5b
Obwód =2a+2b = 30
podstawiamy za a
2x1,5b+2b=30
5b=30
b=6 cm
a=1,5b=9cm
Pole =axb = 9x6=54 cm2
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
a/b = 3/2
2a=3b
a=3/2=1,5b
Obwód =2a+2b = 30
podstawiamy za a
2x1,5b+2b=30
5b=30
b=6 cm
a=1,5b=9cm
Pole =axb = 9x6=54 cm2