13 The coordinates of triangle ABC are A(-7, 3), B(3, -7) and C(8,8). P is the foot of the perpendicular from B to AC,
a) Find the equation of the line BP,
b) Find the coordinates of P.
c) Find the lengths of AC and BP,
d) Use your answers to part c to find the area of triangle ABC.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.

127

whether it's diameter, or radius, i believe if i remember correctly from school, every amount has to always add up to 180. so if you take 53, and starting adding, long story short, taking 127 and adding it to 53, gives you 180.