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CBSE Class 9 Answered

Asked by badesraajay | 09 Sep, 2015, 06:26: PM
answered-by-expert Expert Answer

,begin mathsize 14px style I n space r i g h t space t r i a n g l e space A B C comma space A C space i s space t h e space h y p o t e n u s e. B y space P y t h a g o r a s space t h e o r e m comma space w e space h a v e left parenthesis x right parenthesis squared plus left parenthesis x minus 2 right parenthesis squared equals left parenthesis x plus 2 right parenthesis squared x squared plus x squared minus 4 x plus 4 equals x squared plus 4 x plus 4 2 x squared minus 4 x plus 4 equals x squared plus 4 x plus 4 2 x squared minus x squared minus 4 x minus 4 x equals 0 x squared minus 8 x equals 0 x left parenthesis x minus 8 right parenthesis equals 0 T h e n space x equals 0 space o r space x equals 8 B u t space 0 space c a n n o t space b e space t h e space l e n g t h space o f space s i d e. T h u s space x equals 8 end style

Answered by | 09 Sep, 2015, 06:33: PM

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