sopniladangol2009
sopniladangol2009 sopniladangol2009
  • 07-09-2021
  • Mathematics
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I need help on both question .plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz help​

I need help on both question plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz plz help class=

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Аноним Аноним
  • 07-09-2021

#b

See AB||CD

Hence

[tex]\\ \rm\Rrightarrow <BGH=<GHD[/tex]

[tex]\\ \rm\Rrightarrow 90=90[/tex]

[tex]\\ \rm\Rrightarrow \dfrac{1}{2}<BGH=\dfrac{1}{2}<GHD[/tex]

[tex]\\ \rm\Rrightarrow <HGP=<GHP=45°[/tex]

Now using angle sum property

[tex]\\ \rm\Rrightarrow a+45+45=180[/tex]

[tex]\\ \rm\Rrightarrow a=180-90[/tex]

[tex]\\ \rm\Rrightarrow a=90[/tex]

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good job