Question

please solve these two questions i didn't able to understand plsssssssssssssssssssssssßssssssssssssssssss ​

Answer 1

$\huge\boxed{\fcolorbox{white}{pink}{Aɴsᴡᴇʀ:-}}$

Mark Brainlist.

Since in a rec diagonal are equal and bisect each other

∴OD=OA

and ∠S opp to equal sides are equal

∴∠1=x

Now, In ΔODA

∠DOA=70°

(vertically opp. ∠S)

x+∠1+70=180°

(∠ sum prop)

and ∠1=x

∴x+x+70=180

2x=110

x= 2÷110

x=55°

⇒ ∠ODA=55°

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