Question

what is the surface area of a cuboid whose dimensions are 15cm x 8cm x 3cm​

Answer 1

Answer:

Step-by-step explanation:

Total surface area = 2(lb+bh+hl)

                               = 2 ( 15*8 + 8*3+ 3*15) cm^2

                              = 2 ( 120+ 24+ 45) cm^2

                               = 2 * 189 cm^2 = 378 cm^2

Hope it will help you.

Please mark it brainlist.

Answer 2

Step-by-step explanation:

formula of (TSA )

is =2(lb+bh+lh )

subtituting the value ,

2(15×8+8×3+15×3)

2(120+24+45)

2(189)

378cm ^2

:.378 cm^2 is your answer buddy please follow me or mark me as a brilliant please .