kasalim812
Keliling - 4 x s 104 = 4x s s = 26 cm Diagonal 2 : phytagors ( 5,12,13 ) 10,24,26 ( 5x2, 12x2,13x2 ) jadi Diagonal 2 nya : 20 cm Luas = 20 x 26 : 2 = 260 cm2
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kasalim812
salah2 , luasnya : 20 x 48 : 2 = 4800 cm2 ( maap ya )
s=104/4=26
*1/2 d2=x
x²= 26²-24²
x=10
d2=2x=20
L=1/2 d1 d2
=1/2 20.48
=480 cm²
bner gk tu? .-.
104 = 4x s
s = 26 cm
Diagonal 2 : phytagors ( 5,12,13 )
10,24,26 ( 5x2, 12x2,13x2 )
jadi Diagonal 2 nya : 20 cm
Luas = 20 x 26 : 2 = 260 cm2