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Example: <BR>Here we are to find the area of a rectangle <BR>with base = 10cm and height = 4 cm. So our solution:<BR>First we want to draw a sketch of the problem. <BR> We see that the base is longer than the <BR>height is high. So we want our rectangle <BR>longer than it is high. It doesn’t have to be exactly 10x4. <BR>10cm down here and 4 cm here<BR> And we are looking to find the area of this <BR>rectangle. <BR> So the first thing we need to do is to have our <BR>formula for the area.<BR> The formula for the area of a rectangle is – <BR>anybody remember? - base x height.<BR> So base x height. That is our formula.<BR><BR> Here – what do we have? We have the area of <BR>our rectangle and now we are going to <BR>substitute in our base and our height. So for base, we are going to put in 10 cm and <BR>for height, we are going to put in 4 cm.<BR> Now, we group these by numbers and units. <BR>So we have 10 x 4 (that’s the two numbers) <BR>and cm x cm. So we have 10 x 4 = 40 and cm x cm = cm ^2 <BR>(squared).<BR> So that is our answer to what is the area of <BR>this rectangle. <BR>