Mathematics, 11.10.2019 03:30 harveyangel123p2tjae
1/2 of a number is 14 more than two times the number
Answers: 2
Mathematics, 20.06.2019 18:04
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
1/2 of a number is 14 more than two times the number...
Arts, 29.11.2019 18:31
Mathematics, 29.11.2019 18:31
History, 29.11.2019 18:31
Physics, 29.11.2019 18:31
Chemistry, 29.11.2019 18:31
History, 29.11.2019 18:31
Geography, 29.11.2019 18:31
Chemistry, 29.11.2019 18:31
Mathematics, 29.11.2019 18:31
Mathematics, 29.11.2019 18:31