Question

The diagram shows the net of a juice box. The box is a rectangular prism.
6.4 cm
10.5 cm
What is the surface area of the juice box?
A
134.8 square centimeters
134.8 squa
B
C
185.6 square centimeters
218.4 square centimeters
218 4
269.6 square centimeters

Answer 1

Answer:

269.6 square centimeters

Step-by-step explanation:

The correct question is

The diagram shows the net of a juice box. the box is a rectangular prism. what is the surface area of the juice box? 6.4 cm 4 cm 10.5 cm

we know that

The surface area of a rectangular prism is equal to

$SA=2B+PH$

where

B is the area of the base

P is the perimeter of the base

H is the height of the prism

we have

$L=6.4\ cm\\W=4\ cm\\H=10.5\ cm$

Find the area of the base B

$B=LW$

substitute the given values

$B=(6.4)(4)=25.6\ cm^2$

Find the perimeter of the base P

$P=2(L+W)$

substitute the given values

$P=2(6.4+4)=20.8\ cm$

Find the surface area

$SA=2B+PH$

substitute  

$SA=2(25.6)+(20.8)10.5=269.6\ cm^2$