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x/y=3/4
x²+y²=2500
4x=3y
x²+y²=2500
x=3/4y
(3/4y)²+y²=2500
9/16y²+y²=2500
25/16y²=2500
y²=2500*16/25
y²=1600
y=40 m
x=3/4*40
x=30 m
O=2*40+2*30
O=80+60
O=140 m
9x²+16x²=2500
25x²=2500/:25
x²=100
x=√100
x=10
1 bok = 4*10=40m
2 bok = 3*10=30m
Ob= 2*30m+2*40m
Ob=140m
Obwód wynosi 140m
x/y=3/4
x^2+y^2=2500
4x=3y
x^2+y^2=2500
x=3/4y
(3/4y)^2+y^2=2500
9/16y^2+y^2=2500
25/16y^2=2500
y^2=2500*16/25
y^2=1600
y=40
x=3/4*40
x=30
30m to ten mniejszy bok, a 40m większy.Co ja pisze.
To obw:2*40+2*30=140