Question

two distinct planes __________ intersect in a pair of lines



ALWAYS
NEVER
SOMETIMES


I THINK SOMETIMES

Answer 1

If you say "sometimes," then you need to show a time that the planes do and a time that the planes don't.

Answer 2

but would i be correct? because you could have two planes, and a point on each without a line connecting them

Answer 3

Look at the file photo attached below. That's one way two planes can intersect.

Answer 4

but would i be correct? because you could have two planes, and a point on each without a line connecting them
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No. The question has to do with "intersect in a pair of lines," not points.

There should be some postulates in your text that tell you about the relationships of planes and points and lines and all that.

Answer 5

oh. so its always//

Answer 6

Have you read those postulates?

Quoting from my Geometry book, "If two distinct planes intersect, then exactly one plane contains the lines."

Answer 7

"a pair of lines" is TWO lines. The postulate says the intersection is how many lines?

Answer 8

false

Answer 9

If by "false," you mean "never" then I agree with you.

Answer 10

agree never it is