Question

find the surface area of cuboid whose lenght breath height are respectively 13cm 9cm and 2.5 cm​

Answer 1

Answer:

344cm²

Step-by-step explanation:

surface area of cuboid = 2[ l*b + l*h + b*h ]

l = 13cm, b = 9cm, h = 2.5cm

                                      = 2[ 13*9 + 13*2.5 +9*2.5] = 2[ 117 + 32.5 + 22.5]

                                      = 2[172] = 344cm²