Answer:
6/4
Step-by-step explanation:
Answer:

Step-by-step explanation:
step 1
Find the length of the base L
we know that
The surface area of a rectangular prism is equal to

where
B is the area of the base
P is the perimeter of the base
H is the height of the prism
substitute

we have



substitute in the formula and solve for L




step 2
Find the volume of the rectangular prism
The volume is equal to

we have



substitute

Answer:
7 cm
Step-by-step explanation:
The two triangles are similar, so you can set up a proportion where (36/6) = (42/x). When you solve for x, you get seven.