Question

Help me to find the surface area!!!​

Answer 1

answer:

3874 ft²

explanation:

S₁=a+b/2*h

S₁=31+21/2*33

S₁=858 ft²   two sides   S₁*2    858*2=1716 ft²

S₂=a+b/2*h

S₂=16+21/2*33

S₂=610,5 ft²   two sides S₂*2   610,5*2=1221 ft²

Stop=a²

Stop=21²=21*21=441 ft²

Sdown=31*16=496 ft²

surface area = S₁*2+S₂*2+Stop+Sdown

surface area = 1716+1221+441+496

surface area = 3874 ft²