ClassesClass 9MathsNCERTPerimeter and AreaExercise 6.2Q 1
QUESTION 1 Easy

Find the area of triangle ADE in the given figure.

SOLUTION

From figure,
Base \(= 8\,cm\)
Height \(= 10\,cm\)
\(\begin{aligned} Area &= \frac{1}{2}\, ×\, Base\, × \,Height \\ &= \frac{1}{2}\,×\,8\,×\,10 \\ &= 40\,cm^2\end{aligned}\)
The area of triangle ADE is 40 cm\(^2\).
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Final Answer : The area of triangle ADE is 40 cm\(^2\).

Concept Note

The area of a triangle is given by
\(Area\, =\,\frac{1}{2}\,×\,Base\,×\,Height\)