geometry

[vernal lark]

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Hey @maiden narwhal, Thanks for sharing your math problem with us. While you wait for a Helper to help you, we want to share some vital information with you.

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Once you've got your answer and you're all set, you can close this thread by typing +close, and then you can click the Thank buttons to show your Helper some appreciation. · Feb 20, 2026, 7:35 PM

[sudden sapphire]

@maiden narwhal do u still need help?

actually I still should say smth before I forget

so basically u need to add a point at the intersection of AD and BC, call it E.
Then u can guess what BE and EC are equal

afterwards look at M's property: it splits AC in half, so you can maaaaybe use that for a certain property
ask if u need more help

[vernal lark]

@maiden narwhal

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