in trange, angle A = x angle B = 3x²
and angle c = y. if 3 y - S x²= 30 then
prove that this is right angle triangle
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Answer:
Given:A=x,B=3x,C=y
∴Sumof△le=x+3x+y
180=4x+y
⟹180−4x=y
Also,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
∘
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