Question

Tolong jawab no 8a 8b Trims

Answer 1

Verified answer

Panjang dan lebar berselisih 1 meter
p - l = 1
lebar = x cm
p - x = 1 → p = 1 + x

a)
Luas = panjang × lebar
Luas = (1 + x) × x
Luas = x + x²
Luas = (x² + x) cm

b)
Keliling = 2 × (panjang + lebar)
Keliling = 2 × (1 + x + x)
Keliling = 2 × (1 + 2x)
Keliling = 2 + 4x
Keliling = (4x + 2) cm