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A park is in the form of a right angled triangle with hypotenuse 50 &m.If one of the side is 40m find the cost of levelling at the rate of Rs. 3 per 5q.

1 Answer

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first, we have to find the area of the triangle using the third side. Let the third side be x . By Pythagoras theorem:


x=\sqrt[]{50^2-40^2}=\sqrt[]{2500-1600}=\sqrt[]{900}=30

So, the area of the right triangle is half of the base time height.


\begin{gathered} A=(1)/(2)*40*30 \\ =(1200)/(2) \\ =600 \end{gathered}

Now, the cost of leveling will be the area times the rate of leveling:


C=600*3=1800

THus, the cost of leveling the park is Rs. 1800.

answered
User Tommaso
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