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Maths CBSE Live product
Class 9 (2026-27)
Measuring Space: Perimeter and Area
Heron’s Formula
4.
Find the area of the triangle
Question:
3
m.
Find the area of the triangle of sides \(13 \ dm\), \(15\ dm\) and \(12 \ dm\).
(Use \(\sqrt{14} = 3.74\))
\(20 \ dm^2\)
\(77 \ dm^2\)
\(216.33 \ dm^2\)
\(74.8 \ dm^2\)
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