Question

Which expression can be used to find the surface area of the following rectangular prism? Choose 1 answer: (Choice A) A 15+15+10+10+6+615+15+10+10+6+615, plus, 15, plus, 10, plus, 10, plus, 6, plus, 6 (Choice B) B 10+10+6+610+10+6+610, plus, 10, plus, 6, plus, 6 (Choice C) C 15+15+10+10+615+15+10+10+615, plus, 15, plus, 10, plus, 10, plus, 6 (Choice D) D 10+610+6

Answer 1

Answer: A

Step-by-step explanation:

The rectangular prism has 6 faces  and to find the area of the faces we need to multiply the length by the width.  

the first face is: 3*2 = 6

Second face is:  3*2 =6

third face   js :  5*3= 15

fourth face is :  5*3 = 15

fifth face   is  :  5 * 2 = 10

sixth face  is :   5*2 = 10  

Now add them up

15 + 15 + 10 + 10 + 6 + 6  so A is the answer.