sum of the squares of adjacent sides of a parallelogram is 130 square cm and length of one of its diagonals is 14 cm find the length of the Other diagonal.
Nitinmundhra:
The sum of squares of the adjacent sides is (130)² cm or 130 cm²(it is used with area)
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let the diagonal be x .
a^2+ b^2 :130
pythagoras theorem
x is equal to square root of 130
a^2+ b^2 :130
pythagoras theorem
x is equal to square root of 130
How can you use Pythagoras theorem,it is not a right angled triangle
no its correct
Diagonals of a ||gm do not meet at right angles,so there will be no right angled ∆
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