Question

13.

Answer 1

Answer: $2,596 cm^2$

Step-by-step explanation:

Given dimensions of rectangular prism :

length: 8 cm

width: 13 cm

height: 10.5 cm

If all the dimensions of the prism are doubled, then the new dimensions will be:

length: 16 cm

width: 26 cm

height: 21 cm

The surface area of rectangular prism is given by :-

$S.A.=2(lw+wh+hl)\\\\\Rightarrow\ S.A.=2(16*26+26*21+21*16)\\\\\Rightarrow\ S.A.=2,596 cm^2$

Hence, its new surface area $2,596 cm^2$

Answer 2

The answer is 2,596 so it would be C