To find the surface area, you just need to find the area of each of the shapes shown and add them together. We can find the area of one of the triangles by doing: (base × height)/2 (6 × 4)/2 = 24/2 = 12
As there are 4 identical triangles, the area of all of them would be 12 × 4 = 48 in².
Now we need to find the area of the square in the middle, which would be 4 × 4 = 16 in².
Coordinates of the midpoint of AC: M ( (-6-2) / 2) , ( 7-9 ) /2 ) = ( -4, -1 ) d ( BM ) = √ ( 4 + 4 )² + ( -1+ 1 )² d ( BM ) = √ 8 ² =√ 64 = 8 The length of the median from angle B is 8.
