Ratio equivalent to 2:1
1 answer:
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Answer: -1
Step-by-step explanation:
Find the two coordinates first.
In this case, they are (-4, 1) and (-2, -1).
Use the following formula to calculate slope:
Substitute in the coordinates:
=
= -1
let's call G the intersection point of EF & BC.
according to the thales' theorem:
and EF= EG+GF=EG+3
length of the altitude of △AED=EF
EF=EG+GF=1.5+3=4.5