A hall has a length of 20 m, and a width of 30 m. Find the length of the diagonal of the room. Round to the nearest tenth.
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Answer:
Write an equation that relates 45cm2, w+4 and w.
To do so, we know that the area of the rectangle, 45cm2 can be found by multiplying w with w+4. Hence, we have:
the equation, w(w+w) = 45
To continue, we need to remove the bracket and simplify the equation. This is shown below:
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