Question

If BG = 90 and AF = 35, find the length of DE.

Answer 56.56
57.01
28.28
165.84

Answer 1

o really?

Answer 2

Nobody has helped you with this stuff already?

Answer 3

no

Answer 4

Didn't you go over this stuff in class?

Answer 5

we did bt wen i asked my teacher 4 extra help she didnt reply

Answer 6

Chris? Isn't there a forumal for this types of problems? I forgot the formula..If you can can you provide it for me if its on your book or the resource ur using?

Answer 7

uhhhmmmm hold on

Answer 8

assume BG is the diameter and DE=2FE
radius = 90/2 =45
BG is perpendicular to DE (reason: forget)
therefore \[FE= \sqrt{45^{2}-35^{2}} = \sqrt{800}=28.28\]
DE = 2FE = 56.56