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Question Number 176607 by MASANJAJJ last updated on 23/Sep/22
Answered by FelipeLz last updated on 23/Sep/22
a.x(y+4)=(x+5)y⇒xy+4x=xy+5y⇒x=5y4(x+5)y=400⇒45×(54y2+5y)=45×400⇒y2+4y−320=0y=−4±12962={16−2016Lb.Sn=180°(n−2)∴S5=540°540°−(58°+83°)=399°α:β:γ=5:6:8α=5×399°5+6+8=105°β=6×399°5+6+8=126°γ=8×399°5+6+8=168°
Commented by Tawa11 last updated on 23/Sep/22
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