Question

What is the length of DF rounded to the nearest tenth?

Answer 1

Can anyone help me? @tiaph @Hero @karatechopper

Answer 2

Err are you given any other piece of information? It is currently unsolvable at the moment.

Answer 3

how is it unsolvable?

Answer 4

how are the 2 triangles related to each other? are they congruent or something?

Answer 5

Yes they want to find the length of DF! :)

Answer 6

Since they are congruent triangles DF = AB. then you can proceed to solve from there. Do you know how?

Answer 7

No, im afraid not :(

Answer 8

Given two points (a,b) and (c,d)
The way to find the length is as follows:
Length = sqrt( (a-c)^2 + (b-d)^2)

So in this case (2,4) and (-1,-1).

Length = sqrt( (2-(-1))^2 + (4-(-1))^2) = sqrt( 3^2 + 5^2 ) = sqrt( 9+25) = sqrt(34)

Answer 9

Thanks:)