" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
4x+6 = 2x+18
4x-2x=18-6
2x=12
x=6
abis itu x dimasukan ke pdiagonal
p: 4x+6
=4(6)+6
=24+6
=30 cm
l= 2x+18
=2(6)+18
=12+18
=30
lpersegi panjang = p.l = 30.30 =900 cm2
maaf kalo salah
4x + 6 = 2x + 18
4x - 2x = 18-6
2x = 12
x = 6
2(6) + 18 = 12+18 = 30 cm
Diagonal = sisi√2
sisi = diag/√2
sisi = 30/√2
= 30/√2 x √2/√2
= 30/2 √2
= 15√2 cm
luas = s x s
= 15√2 x 15√2
= 15 x √2 x 15 x √2
= 225 x √4
= 225 x 2
= 450 cm persegi