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(Hipotenusa)² = (Cateto₁)² + (Cateto₂)²
(20 cm)² = (12 cm)² + x²
400 cm² = 144 cm² + x²
400 cm² - 144 cm² = x²
256 cm² = x²
√(256 cm²) = x
16 cm = x
PERÍMETRO:
Suma los lados de la figura:
Perímetro = 44 cm + 28 cm + 12 cm + 20 cm
Perímetro = 104 cm
RTA: El perímetro es de 104 cm.