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CBSE Class 9 Answered

Find the perimeter of a triangle whose vertices are (0,4),(3,0) and (-3,0).
Asked by gujarsurjeet007 | 12 Feb, 2018, 11:45: AM
answered-by-expert Expert Answer
begin mathsize 16px style Let space straight A left parenthesis 0 comma 4 right parenthesis comma space straight B left parenthesis 3 comma 0 right parenthesis space and space straight C left parenthesis negative 3 comma 0 right parenthesis Find space AB comma space BC space and space AC. AB equals square root of left parenthesis 0 minus 3 right parenthesis squared plus left parenthesis 4 minus 0 right parenthesis squared end root equals square root of 9 plus 16 end root equals 5 space units BC equals square root of open parentheses 3 plus 3 close parentheses squared plus 0 end root equals 6 space units AC equals square root of open parentheses 0 plus 3 close parentheses squared plus open parentheses 4 minus 0 close parentheses squared end root equals 5 space units Perimeter space of space increment ABC equals 5 plus 6 plus 5 equals 16 space units. end style
Answered by Sneha shidid | 12 Feb, 2018, 02:23: PM

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CBSE 9 - Maths
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