Question

*medal and fan*

Sylvia’s aunt asked her to help cut out fabric for a quilt. The figure shows the pattern of one section that is made of triangles.



What degree of rotation clockwise about point B should Sylvia use to prove that ΔABC (pre-image) and ΔIBH (image) use the same amount of fabric?

______° clockwise

Answer 1

@iGreen

Answer 2

does it say "this triangle is an equilateral triangle" ?

Answer 3

nu

Answer 4

or does it say "BH is a vertical line segment" ?

Answer 5

umm nu

Answer 6

ok it looks vertical but it could be off

BC looks horizontal, so BC rotates 90 degrees clockwise to land on BH. Do you see what I mean?

Answer 7

nu please tell me :(