Answer:
The surface area increases by 11.16 cm².
Step-by-step explanation:
First find the surface area of the original shape
A=2(wl+hl+hw) Use this equation to find the surface area of the rectangular prism.
A = 2[(4.6 x 14)+(32 x 14)+(32 x 4.6)] Multiply and add
A = 1319.2 cm²
Now increase the height by 0.3 cm
A = 2[(4.6 x 14)+(32.3 x 14)+(32.3 x 4.6)] Multiply and add
A = 1330.36 cm²
Subtract 1330.36 by 1319.2 = 11.16 cm²
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