The surface area, S, of a right rectangular prism with length, l, width, w, and height, h can be found using the formula below.
SA= 2( lw + wh + hl) What is the surface area, in square inches, of a prism with a length of 8 inches, a width of 3 inches, and a height of 9inches?
1 answer:
Answer:
246 in^2
Step-by-step explanation:
Given data
Length= 8 in
Width= 3 in
Height= 9 in
SA= 2( lw + wh + hl)
substitute
SA= 2(8*3+ 3*9+ 9*8)
SA= 2(24+ 27+72)
SA= 2(123)
SA= 246 in^2
Hence the SA is 246 in^2
You might be interested in
Answer:
-3x^2
Step-by-step explanation:
negative three x squared
Answer:
12π cubic inches
Step-by-step explanation:
Volume = (4/3)πr^3
V = (4/3)π9
V = (36/3)π
V = 12π
Answer:
First and last
Step-by-step explanation:
Mean = (1+1+2+3+3+3+4+5)/8 = 22/8 = 2.75
answer
mean = 2.75
