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Entonces , Area del cuadrado :
A = Lado²
A = 12²
A = 144
Area de los sectores circulares :
A = ( Radio² × α )/ 2
Radio → Lado/2 = 6
α → 90° = π/2
Reemplazando:
Al ser " 4 " sectores circulares lo multiplicamos por " ×4 "
A = 4 × ( 6² × π/2 )/2
A = 4 × (36 × π/4 )
A = 4 × ( 9π )
A = 36 π
Area del sector sombreado :
Solucion:
As = 144 - 36π → Area " exacta " 144 - 36π cm²
As = 30,9 → Area " aproximada " 30,9 cm²