if one side of a rectangular field is18m long and one of its diagonals is 30m ,then the area of the field in square meter is
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Answer:
432m²
Step-by-step explanation:
let rect.be ABCD and diagonals be AC
AC=30m
BC=18m
AB=?
AB²+BC²=AC²
AB²+18²=30²
AB²=30²-18²
AB=√900-√324
AB=√576
AB=24
length=18m
breadth=24m
therefore area of field=432m²
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