Question

find the TSA of cuboid l=20 cm b=15 cm h=8 cm​

Answer 1

TSA= 2(lb +bh + hl)

= 2(300 + 120 + 160)

= 2(580) = 1160 cm²

Answer 2

Answer:

TSA = 1160

Step-by-step explanation:

TSA = 2(lb+bh+hl)

TSA = 2{(20×15)+(15×8)+(8×20)}

TSA = 2(300+120+160)

TSA = 2×580

TSA = 1160