SOLUTION: find the surface area in square centimeters of a rectangular solid 8 cm long, 5 cm wide, and 3 cm high?

Question 59072: find the surface area in square centimeters of a rectangular solid 8 cm long, 5 cm wide, and 3 cm high?
Answer by rcmcc(152) (Show Source): You can put this solution on YOUR website!
in a rectangular prism there is always 2 opposite sides that have the same area,
to find the surface area, the sides, multiply by LxW and multiply by 2.
since there are 3 sets of sides we have to make 3 calculations and add the together.
LxW is one set
LxH is another set
WxH is the third set
set 1=(2)x(8)x(5)
set 1 surface area is 80cm squared
set 2=(2)x(8)x(3)
set 2 surface area is 48cm squared
set 3=(2)x(5)x(3)
set 3 surface area is 30cm squared
to find the total surface area, add the numbers together.
the total surface area of the cube is 158cm squared
RELATED QUESTIONS
find the surface area in square centimeters of a rectangular solid 8 cm long, 5 cm wide, (answered by 303795)

a rectangular prism is 9cm long, 8 cm wide, and 7 cm high. Find the surface area of the... (answered by JBarnum)

A rectangular block of wood is 10 cm long, 7 cm wide, and 4 cm high. What is its total... (answered by solver91311)

How many cubic centimeters of water will a rectangular fish tank hold if the tank is 70... (answered by Alan3354)

Suppose Solid A and Solid B are similar. Solid A has an edge length of 18 cm, and the... (answered by ikleyn)

Find the total surface area of a solid, right circular cone of a height 4 cm and radius 3 (answered by Alan3354,MathLover1)

What is the minimum number of square centimeters of wrapping paper needed to wrap a... (answered by Cromlix)

Find the area of a rectangle that is 8 cm long and 4 cm... (answered by mananth)

Find the area of a desk in square inches that is 48 cm long and 67 cm... (answered by Fombitz)