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A plot of the following shape and dimensions was allotted to Mrs. Jain. Find its area.

Diagram http://s17.postimg.org/ghy1zi75r/Capture.jpg



Someone please tell that to find out the area of the right triangles in this figure
Pythagoras theorem should be used after which area would be found out by heron's formula or we need to simply multiply it the height and base with each other ?... help please help...
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Guys first i will name the diagrams from bottom left that is a traingle, trapezium,traingle,traingle of bottom right,square and traingle as 1,2,3,4,5 and 6 respectively.
Now i will find area of all
1) - 1/2×5×6 = 15
2) - 1/2(6+5)*12=66
3) - 1/2*15*10=75
4) - 1/2*7*7=24.5
5) - 7*7=49
6) - 1/2*7*13=45.5
Now add all the products
∴ Area of the plot is 275m²

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