What's the surface area of this shape?

Surface Area of the square = 8 x 8 = 64 cm²

Surface Area of the 4 triangle = 4 x [ 1/2 x 8 x 14] 
Surface Area of the 4 triangle = 4 x [ 56] 
Surface Area of the 4 triangle = 224 cm²

Total Surface Area = 64 + 224 = 288 cm²

 288 cm²

A)26•2=52there are 2 sides with the same length116-52=64the other 2 side have to be half of 64 each64/2=32the width is 32b)make two sentences about these steps because your teacher knows how you write and explain things.