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Byju's Answer
Standard X
Mathematics
Joint Variation
if the base a...
Question
if the base and attitude of a triangle are doubled , what happens to the area
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Solution
Let
the
original
base
of
∆
=
b
Let
the
original
altitude
of
∆
=
h
Now
,
original
area
,
A
=
1
2
×
base
×
altitude
=
1
2
bh
Now
,
new
base
=
b
1
=
2
b
new
altitude
,
h
1
=
2
h
New
area
,
A
1
=
1
2
×
new
base
×
new
altitude
=
1
2
b
1
h
1
=
1
2
×
2
b
×
2
h
=
4
×
1
2
bh
=
4
A
So
,
A
1
=
4
A
So
,
new
area
of
the
∆
will
be
4
times
the
original
area
.
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