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6 and –6 are at the same distance from 0 on the number line.

Answer:

True.

From the above number line we can say that, 6 and –6 are at the same distance of 6 units from 0 on the number line.

"hello students my name is megha and i am
a tutor at leader learning
in this q a video we will explore the
concept of hedon's formula
find the area of triangle whose sides
are respectively 9 centimeter 12
centimeter and 15 centimeter
so we have to find the area of triangle
in which all the three sides
of a triangle are equal so to
whenever we have three different sides
of a triangle we use
heron's formula to find the value
of area of triangle we use heron's
formula to find the area of triangle
area of triangle so what is the formula
for area of triangle by heron's formula
is
under root of
semi-parameter semi-parameter minus side
a
semi-parameter minus side b
semi-parameter minus side c
so here how do we find the
semi-parameter semi-parameter means
parameter divided by 2
and parameter is equals to sum of all
the sides
sum of all the sides means 9 plus 12
plus 15 centimeters
divided by 2 so it will be
equals to 5 15 and 10
25 and 35 and 36
divided by 2 so semi-parameter will be
equals to 18 centimeters
now put the value of semi-parameter in
the
area of triangle to find the area of
triangle
now it will be equals to
18 centimeter
into 18 minus 9 centimeter into 18 minus
12 centimeter
into 18 minus 15 centimeters
so it will be equals to 18
18 minus 9 is 9 18 minus 12 is 6 and 18
minus 15 is 3
so after calculating it you will find
the value
as 2 9 1 6
which is the under root under root of 2
1 2 9
1 6 is 54 units
so our answer will be
54 square centimeters
if you have any query in this question
please drop a comment below and
subscribe to our channel for more
updates
thank you
"

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