Let l and w be the length and width of the rectangle. We know that
The formula for the perimeter is
Using our substitution, it becomes
We know that the perimeter is 34, so we have
The length is 4 less than twice the width, so we have
Arc Length: The pendulum on a grandfather clock swings from side to side once every second. If the length of the pendulum is 4 f
1 answer:
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Answer:
surface area of cube time
Step-by-step explanation:
given data
new volume = 10 time original volume
to find out
what factor surface area change
solution
we consider here side of cube is a
and volume is V
we consider here a is 2
then volume will be v1 = a³ = 2³ = 8
and surface area = 6a² = 6(2)² = 24 ..........1
so if volume increase 10 time
than
V = 10 × v1
a³ = 10 × 8
a³= 80
a = 2 × ∛10
and
surface area increase here
surface area = 6a²
surface area = 6( 2 × ∛10 )²
surface area = 24 × ............2
so from equation 1 and 2
surface area / surface area = 24 × / 24
surface area =
so here surface area of cube will be time