On
a
graph
paper
,
draw
rectangles
of
different
dimensions
but
same
area
.
Enter
the
meas
Suppose
the
area
of
the
rectangle
is
24
cm
?
Then
the
possible
measurements
of
length
and
In
each
case
,
find
the
product
/
xb
.
It
is
a
constant
.
This
shows
that
if
area
is
constant
,
the
lere
.
inverse var
bey, we make a table o
Number of Men (x)
Number of Days (y)
52
8
of the length and breadth of these rectangles in the following table.
9
Activity
12
24
16
8
are as follows:
Length (1) (cm)
Breadth (b) (cm)
1
2
1.5
3
breadth of a rectangle vary inversely,
EXERCISE 7.2
1. In which of the following cases, the variation is inverse?
a. Perimeter of a square and length of its side.
b. Time taken to travel a certain distance and speed.
Simple interest on a certain sum of money and time, rate being constant,
d. The number of pipes filling a water tank and quantity of water filled in
direct ratio?
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