Question

Geometry proof, please help!

Answer 1

Given: In ∆ABC below, .
Prove: .



The flow chart proof with missing statements and reasons proves that if a line intersects two sides of a triangle and divides these sides proportionally, the line is parallel to the third side.



Which statement and reason can be used to fill in the numbered blank spaces?

A. 1. ∡A ≅ ∡B
2. Corresponding Parts of Similar Triangles

B. 1. ∡A ≅ ∡B
2. Corresponding Angles Postulate

C. 1. ∡B ≅ ∡B
2. Reflexive Property of Equality

D. 1. ∡A ≅ ∡A
2. Reflexive Property of Equality

Answer 2

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1002_03/image0064e983525.gif

Answer 3

http://learn.flvs.net/webdav/assessment_images/educator_geometry_v14/pool_Geom_3641_1002_03/1002_03_03_a.jpg

Answer 4

cant open your file

Answer 5

@RadEn can you see it now? i took a screenshot

Answer 6

I'd say "C". Because the equality shows ratios of lengths of segments that all start in the vertex B.

Answer 7

and i don't see how it could be "A" or "B", because angles A and B cannot really be linked together.

Answer 8

Thank you so much! :)

Answer 9

Does that seem easy, or correct to you?

Answer 10

It's really the only one that makes sense, I had guessed C as well but I just wasn't sure.

Answer 11

(=

Answer 12

Thanks again! :)

Answer 13

you're welcome