Question

please help!! 1 medal and fan



1. Which segment in the diagram is skew to BD ?
GH
DC
BF
FH https://rialto5819-ehs-pps.gradpoint.com/Resource/2146263,72F,0,0,0,0,0/Assets/testitemimages/geometry_a/tools_of_geometry/mc071-1.jpg

Answer 1

skew to BD
means
not lying in BD plane

Answer 2

Segment GH is skew to segment BD.

Skew lines do not intersect and do not lie in the same plane.

Answer 3

lets start from the last option
FH :-

Answer 4

can BD form a plane with FH ?

Answer 5

Both segments DC and BF intersect segment DB so they cannot be skew.

Answer 6

no

Answer 7

actually its yes.
u have the bottom surface, BDFH, which has both BD and FH segments.

Answer 8

Segment FH and segment BD lie in the same plane, the floor of the solid so while they are parallel, they are not skew because they lie in the same plane.

Parallel lines are equidistant and do not intersect while skew lines do not intersect but are not equidistant.

Answer 9

oh ok i see it now

Answer 10

next, test option C
BF :-

Answer 11

are they lying in same plane ?
yes. we see that both BD and BF are lying in the bottom surface, BDHF
so they're not skew

Answer 12

similarly test B and A options also

Answer 13

ok i kinda get it

Answer 14

great !

Answer 15

would the answer be B

Answer 16

careful, DC and BD are not lying in any surface ?

Answer 17

no there not

Answer 18

look at the left surface, ACDB

Answer 19

then look at DC and BD segments, they are lying in left surface

Answer 20

ACDB is skew with GH

Answer 21

correct ! so BD is skew with GH
A is your answer

Answer 22

THANK YOU GUYS SO MUCH

Answer 23

np :)