PLEASE HELP WILL GIVE BRAINLIEST11 Which one of these is not a step used when constructing an inscribed hexagon using technology?

Connect the point with a line through the center of the circle.

Mark the points of intersection between the two circles.

Create a circle using the center with given point tool.

Create another circle with the same radius as the original.

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?

Farnesene is a sesquiterpene. how many different isomers arising from double-bond isomerizations are possible? g

Can some one me with these questions