The height of the prism is 
Explanation:
It is given that the area of the cross section of the rectangular prism is 45 square inches.
Length of the rectangular prism is 
Width of the rectangular prism is
To determine the height of the prism, let us substitute these values in the formula 
, we get,
Multiplying the terms within the bracket, we get,
Adding the terms within the bracket, we have,
Dividing both sides by 20, we get,
Thus, the height of the rectangular prism is
Answer:
192
Step-by-step explanation:
Step-by-step explanation:
so, you got the volume but don't know how to find the surface area ? that is strange for me. what's the problem ?
the surface of a cube or rectangular prism consists of 6 sides that split (for a rectangular prism) into 3 pairs of equal sides :
top and bottom
left and right
front and back
all we need to do is calculate the areas of these 6 rectangles and add them up. that's it.
in our case
top and bottom : 5×4 × 2 = 20×2 = 40 in²
left and right : 4×4 × 2 = 16×2 = 32 in²
front and back : 5×4 × 2 = 40 in²
so, in total, the whole surface area of the prism is
40 + 32 + 40 = 112 in²
You use y=mx+b... idk if that helped or not :)
Answer:440.925
Step-by-step explanation:
