Mary runs diagonally across a rectangular field that has a length of 40 metres and a width of 30 metres. What is the length of the diagonal, in metres?
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Answer:
50 m is the length of the diagonal.
Step-by-step explanation:
As we know, a rectangle has right angle (ie.90°) at all vertices. So the diagonal divides the rectangle into two right angled triangles.
So applying the Pythagoras theorem,
(length of the diagonal)²=30²+40²
=900+1600
=2500
therefore, length of the diagonal=√2500=50m
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