The line segment is rotated 180 degrees counterclockwise about the origin to form E′F′. Which statement describes E′F′? A: E′F′ is perpendicular to EF. B: E′F′ and EF are equal in length. C: E′F′ is half the length of EF. D: E′F′ is greater than twice the length of EF.

idn

step-by-step explanation:

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

it should be a.

hope it