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La base es 4 cm mayor que su altura.
2b+2h = 32
b = h+4
sustituyo b por h+4
2(h+4)+2h = 32
2h+8+2h = 32
2h+2h = 32-8
4h = 24
h = 24÷4
h = 6
la altura es 6 y la base 4 cm más = 6+4 = 10
Comprobamos
2×10+2×6 = 20+12 = 32