Question

What is the surface area of this design? (in the image)

Answer 1

★TSA=2(LB+BH+LH)

#1

• L=4
• B=4
• H=6

TSA:-

• 2(4×4+4×6+4×4)
• 2(16+16+24)
• 2(56)
• 112in²

#2

• L=6in
• B=10in
• H=6in

TSA:-

• 2(60+60+36)
• 2(120+36)
• 2(156)
• 312in²

Total:-

• 312+112=424in²