Question

Find the total surface area of the rectangular prism will make brainliest if answer correctly with work

Answer 1

Answer:

tsa of prism=2(lb+bh+hl)

=2(7.1×2.8+2.8×3.2+3.2×7.1)

=2(19.88+8.96+22.72)

=2(42.60+8.96)

=2(51.56)

=103.12in²

Answer 2

Step-by-step explanation:

surface area of rectangular prism = 2lb +2lh+2bh

where l , b , h are length,width and height

                                                      = 2×7.1×2.8+ 2× 7.1 ×3.2 +2 ×2.8 ×3.2

                                                       = 39.76+45.44 + 17.92

                                                        = 103.12 cm²