$\"\"$

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Area of the triangle is $\"\"$ .

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Observe the figure:

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Consider, $\"\"$ and $\"\"$ .

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Find $\"\"$ .

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$\"\"$ (Formula for $\"\"$ )

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$\"\"$ (Substitute $\"\"$ and $\"\"$ )

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Find the area of the triangle.

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$\"\"$ (Formula for $\"\"$ )

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$\"\"$ (Substitute $\"\"$ , $\"\"$ and $\"\"$ )

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$\"\"$ (Simplify)

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$\"\"$ (Multiply)

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$\"\"$ (Substitute: $\"\"$ )

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Therefore, the area of the triangle is $\"\"$ .

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$\"\"$

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The area of the triangle is $\"\"$ .