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Subjects
Mathematics CBSE
Class 9 New
Measuring Space: Perimeter and Area
Textbook Based Questions
21.
TBQ - Evaluate the area
Exercise condition:
3
m.
The sides of a
triangle
are in the ratio
4
\(:\)
7
\(:\)
9
and its perimeter is
80
\(cm\).
Compute
the area of the
triangle
.
(Use \(\sqrt{5} = 2.24\))
Area of the
triangle
\(=\)
215.04
225.04
210.04
220.04
\(cm^2\).
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