What is the perimeter, in units, of ΔABC with A(−1,−6), B(7,−6), and C(3,−3)?

Question

12 units

14 units,

16 units,

18 units,

I think its 16

Answer 1

Note that it is an isosceles triangle with
AB = 8
BC=AC = 5
So add 'em up to get 18