Question

Bisa tolong bantuin ngk?? ini mau dikumpul

Answer 1

Verified answer

1. P = -11
2. a. K = 2p + 2l
= 2x + 2(x - 10) cm
= 2x + 2x - 20 cm
= 4x - 20 cm
b. 100 cm = 4x - 20 cm
120 cm = 4x
x = 30 cm = panjang
lebar = x - 10 cm
= 30 cm - 10 cm
= 20 cm
3. a. 7
b. 2
c. 5
d. 8
e. 8