triangle xyz with
m<y=
90° and xy = yz
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Step-by-step explanation:
Given: x=90
xy=yz
To prove: xyz is a right angle triangle
Proof: x+y+z=180( by angle sum property)
90+y+y=180
90+ twice of y=180
twice of y=180-90
twice of y=90
y=45
y=z
z=45
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m∠Y=90
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