___________________________________________
K 1 Persegi Panjang = 2 × (P + L)
70 = 2 × (6y + y)
70 = 2 × 7y
70 = 14y
y = 70/14
y = 5 cm
L = S × S
L = 6y × 6y
L = 6(5) × 6(5)
L = 30 × 30
L = 900 cm²
Opsi [ B. ]
K = 2( P + L )
70 = 2( 6Y + Y )
70 = 2( 6Y + 1Y )
70 = 2( 6 + 1 )Y
70 = 2( 7Y )
70 = 14Y
Y = 70/14
Y = 5 CM
MAKA :
L = S . S
= 6Y . 6Y
= 6(5) . 6(5)
= 30 . 30
= 900 cm²
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SOAL 1
___________________________________________
K 1 Persegi Panjang = 2 × (P + L)
70 = 2 × (6y + y)
70 = 2 × 7y
70 = 14y
y = 70/14
y = 5 cm
___________________________________________
L = S × S
L = 6y × 6y
L = 6(5) × 6(5)
L = 30 × 30
L = 900 cm²
Opsi [ B. ]
___________________________________________
K = 2( P + L )
70 = 2( 6Y + Y )
70 = 2( 6Y + 1Y )
70 = 2( 6 + 1 )Y
70 = 2( 7Y )
70 = 14Y
Y = 70/14
Y = 5 CM
MAKA :
L = S . S
= 6Y . 6Y
= 6(5) . 6(5)
= 30 . 30
= 900 cm²