In measuring the sides of a rectangle, one side is taken 5% in excess and the other 4% in deficit. Find the error percent in the area, calculate from the those measurements.
let x and y be the sides of the rectangle then
correct area =105100x×96100y
Error% = 504500xy-xy=4500xy %
4500xy×1xy×100=45=0.8
The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:
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