As shown in the figure, in RT △ ABC, the area sum of square Adec and square bcfg is () A. 150cm2b. 200cm2c. 225cm2d. Unable to calculate

The area of square Adec is: ac2, the area of square bcfg is: BC2; in RT △ ABC, AB2 = ac2 + BC2, ab = 15, then ac2 + BC2 = 225cm2

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