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Subjects
Mathematics State Board
Class 9
Mensuration
Heron's formula
7.
Evaluate the area
Exercise condition:
3
m.
The sides of a
triangle
are in the ratio
5
\(:\)
7
\(:\)
8
and its perimeter is
240
\(m^2\). Find the area of the
triangle
.
(Use \(\sqrt{3} = 1.73\))
Area of the
triangle
\(=\)
\(m^2\).
[
Note
: Round off your answer to two decimal places.]
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