Keliling persegi pnjg 76cm Lebar 16 cm Berapa pnjg dan luasnya

kel = 2x(p+l)
76cm = 2x(p+16cm)
76cm = 2p + 32cm
76cm-32cm = 2p
44cm = 2p
22cm = panjang

luas = p x l =22cm x 16cm = 352cm²

semoga membantu

K = 76 cm
l = 16 cm

K = 2(p+l)
76 = 2(p+16)
p+16 = 76/2
p = 38 -16
p = 22 cm

L = p x l
L = 16 x 22
L = 352 cm^2