Question

find the total surface area of the cuboid l = 8 cm B = 2.5 CM h = 1 CM​

Answer 1

Answer:

TSA = 2(lb+bh+lh)

2(8x2.5+2.5x1+8x1)

2(20+2.5+8)

2(30.5)

61

so TSA of a cuboid =61