Respuesta :

bhavya2vemuri

Answer:

183.92cm^2

Step-by-step explanation:

surface area of a rectangular prism formula: 2(wl+hl+hw)

where 9.5= length

4.2=width

and 3.8= height

(4.2*3.8)+(9.5*4.2)+(3.8*9.5)

15.96+39.9+36.1=91.96

91.96*2=183.92cm^2

hope this helps!

TenzinTsesang

Answer:

183.92cm²

Step-by-step explanation:

2×(3*4/5×4*1/5)+2×(9*1/2×4*1/5)+2×(3*4/5×9*1/2)

2(19/5*21/5)+2(19/2*21/5)+2(19/5*19/2)

2(399/25)+2(399/10)+2(361/10)

798/25+399/5+361/5

798/25+760/5

798/25+3800/25

4598/25 ≈ 183.92cm²