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pishuonlain [190]
2 years ago
14

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 pl

z plz plz help​

Mathematics
1 answer:
Damm [24]2 years ago
8 0

#b

See AB||CD

Hence

\\ \rm\Rrightarrow

\\ \rm\Rrightarrow 90=90

\\ \rm\Rrightarrow \dfrac{1}{2}

\\ \rm\Rrightarrow

Now using angle sum property

\\ \rm\Rrightarrow a+45+45=180

\\ \rm\Rrightarrow a=180-90

\\ \rm\Rrightarrow a=90

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