△ABC is a right angled triangle, right angled at B. BD is a perpendi – InterviewSolution

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1.	△ABC is a right angled triangle, right angled at B. BD is a perpendicular as shown. Prove that: AB2 = AD2 + BC2 - CD2
Answer» $△$ ABC is a right angled triangle, right angled at B. BD is a perpendicular as shown. Prove that: ${A B}^{2}$ = ${A D}^{2}$ + ${B C}^{2}$ - ${C D}^{2}$

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