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
so
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
Answer:
Step-by-step explanation:
Answer:
the first one
Step-by-step explanation:
Ans: 123000
because 3361 gets rounded to 3000
Answer:
54 kilometers
Step-by-step explanation:
87x6 or 522km - 78x6km or 468 = 54