tolong dibantu ya kak

A.) L=18X12=216Cm
K=18+18+12+12=60Cm

B.) L=25X16=400Cm
K=25+25+16+16=82Cm

C.) L=30X15=450Cm
K=30+30+15+15=90Cm

K = 2p + 2l.
K = 2(18) + 2(12).
K = 36 + 24.
K = 60cm.

L = p × l.
L = 18 × 12.
L = 216cm2.

--------------------------

K = 2p + 2l.
K = 2(25) + 2(16).
K = 50 + 32.
K = 82cm.

L = p × l.
L = 25 × 16.
L = 400cm2.

--------------------------

K = 2p + 2l.
K = 2(30) + 2(15).
K = 60 + 30.
K = 90cm.

L = p × l.
L = 30 × 15.
L = 450cm2.