K = 2(12) + 2(8)
= 24 + 16
= 40 CM
2(40) = 2P
80 = 2P
2P = 80
P = 80/2
P = 20
MAKA :
4S = 20
S = 20/4
S = 5 CM
[tex]{\color{aqua}{\boxed{\tt{CaptainInnovaGR}}\:}}[/tex]
DIKETAHUI
Panjang = 12 cm.
Lebar = 8 cm.
Keliling persegi = 2x persegi panjang.
DITANYA
Panjang sisi persegi ?
JAWABAN
Keliling persegi panjang.
2 x (panjang + lebar).
2 x (12 cm + 8 cm).
2 x 20 cm = 40 cm.
Keliling persegi.
40 cm ÷ 2 = 20 cm.
Sehingga panjang sisi.
Sisi = Keliling ÷ 4.
Sisi = 20 cm ÷ 4.
Sisi = 5 cm.
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K = 2(12) + 2(8)
= 24 + 16
= 40 CM
2(40) = 2P
80 = 2P
2P = 80
P = 80/2
P = 20
MAKA :
4S = 20
S = 20/4
S = 5 CM
[tex]{\color{aqua}{\boxed{\tt{CaptainInnovaGR}}\:}}[/tex]
Verified answer
CARA JAWABAN
DIKETAHUI
Panjang = 12 cm.
Lebar = 8 cm.
Keliling persegi = 2x persegi panjang.
DITANYA
Panjang sisi persegi ?
JAWABAN
Keliling persegi panjang.
2 x (panjang + lebar).
2 x (12 cm + 8 cm).
2 x 20 cm = 40 cm.
Keliling persegi.
40 cm ÷ 2 = 20 cm.
Sehingga panjang sisi.
Sisi = Keliling ÷ 4.
Sisi = 20 cm ÷ 4.
Sisi = 5 cm.