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Kelas 8 Matematika
Bab Teorema Pythagoras

x² + (2x)² = √200²
x² + 4x² = 200
5x² = 200
x² = 200/5
x = √40 cm

x^2 + (2x)^2 = √ 200^2
x^2 + 4x^2 = √ 200 × 200
5x^2 = 200
x^2 = 40
x = √ 40 cm