Question

The graph shows the location of Derek's, Evan's, and Frank's houses. Each unit on the graph represents 1 block.

(pic below)

If Frank walks from his house to Derek's house, then on to Evan's house along the path shown, how far will he have walked in blocks? Round your answer to the nearest hundredth.

16.00 blocks

11.31 blocks

19.31 blocks

64.01 blocks

Answer 1

i tried doing it, heres my work;
8^2+8^2=128
11.31^2=127.9161
8+8+11.31=27.31
and that is why i am lost

Answer 2

Let

D = Derek's house
E = Evan's house
F = Frank's house

D,E,F are the points at each house