Mathematics, 12.02.2021 08:00 maddiemccarter3892
Find x pls 10 min
Answers: 1
Mathematics, 20.06.2019 18:04, Uc34758
Here is their argument. given the obtuse angle x, we make a quadrilateral abcd with ∠dab = x, and ∠abc = 90◦, and ad = bc. say the perpendicular bisector to dc meets the perpendicular bisector to ab at p. then pa = pb and pc = pd. so the triangles pad and pbc have equal sides and are congruent. thus ∠pad = ∠pbc. but pab is isosceles, hence ∠pab = ∠pba. subtracting, gives x = ∠pad−∠pab = ∠pbc −∠pba = 90◦. this is a preposterous conclusion – just where is the mistake in the "proof" and why does the argument break down there?
Answers: 2
Mathematics, 21.06.2019 16:00, Alexishp33
What is the length of the unknown leg in the right triangle ?
Answers: 2
Mathematics, 21.06.2019 17:00, jadejordan8888
What properties allow transformation to be used as a problem solving tool
Answers: 1
Find x pls 10 min
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