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Verified answer
P = (2x - 5) cml = (x + 1) cm
Keliling
= 2[(2x - 5) + (x + 1)] cm
= 2[3x - 4] cm
= (6x - 8) cm
Luas
= (2x - 5)(x + 1)
= 2x² + 2x - 5x - 5
= (2x² - 3x - 5) cm²