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Points in a square, surface
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Points in a square, surface
by ghostfirefox » Thu Nov 21, 2019 11:54 am
Let E, F be such points inside the ABCD square that | ∢AEF | = | ∢EFC | = 90∘ and | AE | = 2, | CF | = 6 and | EF | = 6. Calculate the surface of ABCD.
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