Cube (Test : 1) - Cubes & Cube Roots, Math, Class 8 Video Lecture - Class 8 | Best Video for Class 8

understood and good morning today we
learn about cube cube test
you dare to test my different type K
cousin Montaigne so you see that some
good questions coming in salsa building
cubes given put information on a jewelry
so a cube is
three dimensional figure
adding 8 corners
six our face
and villages
if a cube is painted on
all of its surface
fill any other
and further divided into various with
molecules
you
we get foreign leaders first total
number of cubes
second smaller cubes so with three
surface painted
you
smaller clips
did to surface painted
small cubes
big fans of his painted
and tomorrow cubes
with more surface
in case solution Kelly a witch calmly
calmly strike a saying the if a cube
is painted on all of its surface
and then divide into
smarter gives off
equal-sized
then cause total number of Q's
equals two and cue second number of the
smaller cubes with three surface painted
you
it was to be next number of smaller
cubes
where the tools are this container
it was to tell of n minus 2
next number
smaller cubes
there is one surface painted
it was still six of n minus two square
next number of smaller cubes
with no surface pentane
click button and managed to cube here an
equal to number of division
on the surface of the bigger tube
and cable offender conically a home life
and because two left of big queue
/ land ho
small cube Israelite pastoring tie first
question remover a cube of side for
centimeter
is painted black on
all of its at least
and then divided into
releases molecules
offside one-centimeter age
less molecules so octane are
Senate
and fine
first total number of cubes
second how many smaller cubes
have three sir please bended
how many smaller cubes
have to surface pentane
next how many smaller cubes
and once a face painted
next how many smaller cubes
have no sight when did
here solution
first we find the value of an ax so the
value of and it goes to land off
big cube divided by length of
small killed
so length of Miku equals to 4 and
Netherlands monkey with was 2 y + 4 y 1x
and given here annual is 4 so question
number first total number of cubes is n
cube and equals to 4 so 4 cube equal to
64
question number 2 3 surface pentane this
molecule is always 8 so answer is 8 next
occasion third to success painted is
mark you the formula is 12 of n minus 2
he had an e first of all so 12 of 4
minus 2 then 12 into 2 is 20 next 130
spent eight of his molecules and formula
is 6 of n minus 2 square 8 / 6 of 4
minus 2 square 6 of 4 minus 2 square is
2 square 6 into 2 square 4 + 16 - 4 xx
and last smaller cubes of know side
pentane formula is n minus 2 cube here n
equal to 4 that 4 minus 2 Q 2 cube + 2
to the first wait for Katherine Easter -
type ii of types third of next class
recurring okay thank you