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CBSE Class 9 Answered

Q.16
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Asked by 1784393325200864 | 06 Mar, 2018, 09:56: AM
answered-by-expert Expert Answer
 
begin mathsize 16px style The space line space segments space that space can space be space drawn space to space straight a space given space line comma space from space straight a space point space not space lying space on space it comma the space perpendicular space line space segments space is space the space shortest. AD perpendicular BC rightwards double arrow AB greater than AD space and space AC greater than space AD rightwards double arrow AB plus AC greater than 2 AD space space space space space space.... left parenthesis straight i right parenthesis Similarly comma space BE perpendicular AC rightwards double arrow BC greater than BE space and space AB greater than space BE rightwards double arrow BC plus AB greater than 2 BE space space space space space space.... left parenthesis ii right parenthesis And comma space CF perpendicular AB rightwards double arrow AC greater than CF space and space BC greater than CF rightwards double arrow AC plus BC greater than 2 CF space space space space space.... left parenthesis iii right parenthesis Adding space left parenthesis straight i right parenthesis comma space left parenthesis ii right parenthesis space and space left parenthesis iii right parenthesis comma 2 left parenthesis AB plus AC plus BC right parenthesis greater than 2 left parenthesis AD plus BE plus CF right parenthesis rightwards double arrow AB plus AC plus BC greater than AD plus BE plus CF end style
Answered by Rashmi Khot | 06 Mar, 2018, 11:04: AM

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