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The area of the right triangular region is 129.5 $c m 2$ when the length of one side is 14.8cm and of the other side is [[1]] cm.

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answer is 17.5.

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Detailed Solution

The area of the right triangular region is 129.5

c m 2

when the length of one side is 14.8cm and of the other side is 17.5cm.
We know that area of a triangle is

12 × b × h

.
Now, we know that one side (base) is 14.8cm and the area of the triangle is 129.5

c m 2

. So, we will put these values in the above formula.
Area of triangle

= 12 × b × h

129.5 = 12 × 14.8 × h

h = 129.5 × 2 14.8

h = 17.5 c m

Hence, the correct answer is 17.5cm.

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