Question

In a triangle ABC LB= 3LAand
3 Lc =30+5LA. Find the
angles of triangle ABC

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Answer 1

$\huge\red{Ans}\green{wer}$

Given:A=x,B=3x,C=y

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=y

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30 Subtituting y value, ∴3(180−4x)−5x=30

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30 Subtituting y value, ∴3(180−4x)−5x=30∴x=30,bysolving

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30 Subtituting y value, ∴3(180−4x)−5x=30∴x=30,bysolving∴y=180−4×30=60

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30 Subtituting y value, ∴3(180−4x)−5x=30∴x=30,bysolving∴y=180−4×30=60∴A=30

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30 Subtituting y value, ∴3(180−4x)−5x=30∴x=30,bysolving∴y=180−4×30=60∴A=30 ;B=90

Given:A=x,B=3x,C=y∴Sumof△le=x+3x+y180=4x+y180−4x=yAlso,3y−5x=30 Subtituting y value, ∴3(180−4x)−5x=30∴x=30,bysolving∴y=180−4×30=60∴A=30 ;B=90 ;C=60