Question

What is the surface area of this three-dimensional, symmetrical, capital letter “I” block? Show your work.

Answer 1

84

Answer 2

thx, but can u explain it

Answer 3

ok thx so 44 is the volume for one of those and then i need to find how many are they so i can multiply it by the number. right?

Answer 4

I did the volume.Need to find surface area.

Answer 5

oh k thx

Answer 6

hhow can it be divided to parts

Answer 7

104

Answer 8

just get all the are of the surfaces,
there are 10 squares of 2 by 2 dimensions, area is 4 times 10 = 40

surface of the the 2 capital i, ((5 x 2 x 2) + (2 x 1) )x2 =44

and the top and bottom (5x2)x2 =20

the answer should be 104

Answer 9

thx, but can you explain it

Answer 10

thx alot

Answer 11

sori for wrong answer on my first answer

Answer 12

np thx for the help

Answer 13

symmetrical, capital letter “I”
I would find the surface area of one of the "bars" 5 by 2 by 2 (ignoring the fact that the middle connector hides part of the surface).
So one bar has 4 sides with 5 by 2 or 4*10= 40 sq cm
the 2 ends have area 2*2=4 or 8 total.
So the bar has a surface area of 48
Double this for the other bar: 96
Now the middle connector has 4 sides. Use 2 of them to "fill in" the hidden part of the bar (Does that make sense?) We have 2 sides of 2x2 or 2 sides of 4 or 8 sq cm to add in
96+8+ 104

But there are lots of ways to figure this out, as long as you are careful