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radio=perimetro/2pi
radio=1.19
area= pi*radio²
area=3.14*1.19 cuadrdao
area=4.4
P = 7,5
π = 3,14
7,5 = 2×3,14×r
7,5 = 6,28r
r = 7,5÷6,28
r = 1,19 (redondeado a la centésima)
Solución:
El radio de la circunferencia mide 1,19 m