3 years ago

For question 3, use the Pythagorean Theorem.

Mathematics

1 answer:

Juliette [100K]3 years ago

3 0

Step-by-step explanation:

can't really use the Pythagorean because you don't know this is a right triangle.

use the fact that they are similar

3/6 = x/12 where x is FE

cross multiply

6x = 36 therefore FE = 6

then 6/12 = y/9 where y is FD

cross multiply

12y = 54 = 54/12 therefore FD = 4.5

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3 years ago

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