Question

Find LSA and TSA of a cuboid whose dimensions are 11cm long,8cm broad and 9cm high.​

Answer 1

Step-by-step explanation:

LSA of cuboid=2h(l+b)=2×11(5+2)=154cm

2

TSA of cuboid=2(lb+bh+hl)=2(5×2+2×11)=174cm

2

Volume of cuboid=lbh=5×2×11=110cm

2

ii)LSA of cuboid=2h(l+b)=2×8(15+10)=400dm

2

TSA of cuboid=2(lb+bh+hl)=2(15×10+10×8+8×15)=700dm

2

Volume of cuboid=lbh=15×10×8=1200dm

2

iii)LSA of cuboid=2h(l+b)=2×7(2+3)=70m

2

TSA of cuboid=2(lb+bh+hl)=2(2×3+3×7+7×2)=82m

2

Volume of cuboid=lbh=2×3×7=42m

2

iv)LSA of cuboid=2h(l+b)=2×8(20+12)=512cm

2

TSA of cuboid=2(lb+bh+hl)=2(20×12+12×8+8×20)=992m

2

Volume of cuboid=lbh=20×12×8=1920m

2