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
Mathematics, 21.06.2019 15:00
Find three consecutive numbers such that the sum of one-fourth the first and one-fifth the second is five less than one-seventh the third
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Mathematics, 21.06.2019 18:00
Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.
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Mathematics, 21.06.2019 20:20
Which of the following values are in the range of the function graphed below? check all that apply ! - will give the answer "brainliest! "
Answers: 1
The answer to 8x+y more than equal to -12...
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