Question

only question 16plsssss

Answer 1

def is a upsidown triangle

it has 3 equal sides so it is a  scalene

hope this helped

#BEBRAINLY

Answer 2

AB=BC=CA
In triangle ABC
F and D are the mid point of AB and BC respectively
therefore,by converse of mid point theorem
FD ll AC and FD= 1/2AC

D and E are the mid point of BC and CA respectively
therefore, by converse of mid point theorem DE ll AB and DE=1/2AB

E and F are the mid point of AC and AB respectively
therefore, by converse of mid point theorem EF ll BC and EF=1/2BC

As AB=BC=CA
1/2AB = 1/2 BC =1/2 CA
=> DE=EF=FD
Therefore,DEF is an equilateral triangle