а) 22 (28/4=7 ( 7+4) * 2)
б) 26 (36/4=9 (9+4)*2)
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а) 22 (28/4=7 ( 7+4) * 2)
б) 26 (36/4=9 (9+4)*2)
P=4+4+7+7=22см
б)S=36÷4=9см
P=4+4+9+9=26см