This is how the human body surface area was calculated as well: subject's bodies were covered in stripes of paraffin, which were then removed, sliced and measured. Irregularly shaped areas are often divided into several rectangles when one needs to calculate their area, but can't do a precise calculation. Practical applicationsĪrea of a rectangle calculations have a vast array of practical applications: construction, landscaping, internal decoration, architecture, engineering, physics, and so on and so forth. Since in multiplication the order in which the numbers are multiplied does not matter, you need not worry about switching the places of the two measurements. A rectangular bedroom with one wall being 15 feet long and the other being 12 feet long is simply 12 x 15 = 180 square feet. For example, a garden shaped as a rectangle with a length of 10 yards and width of 3 yards has an area of 10 x 3 = 30 square yards. Thought about the area of each of these rectangles, it might make a littleīit more intuitive sense where this number came from.The area of any rectangular place is or surface is its length multiplied by its width. Multiply the length of the rectangle by its width to find the area of the rectangle, and use the formula, where is the base and is the height of the triangle, to find the area of the triangle. Just multiply five-ninths times seven-eighths to The sum of the areas of the two shapes is the area of the polygon. Square meter is going to be 35, 35-72nds of a square meter. And what's that going to be? Well, that's going to beĮxactly what we got up here. So, if I say 35, so theĪrea of all of them combined is going to be 35 times So the area of each of these 35 is one-72nd of a square meter. One-eighth of a meter which is equal to one times one is one, nine times eight is 72,Īnd meters times meters is square meters. Over there is just going to be one-ninth of a meter times One-ninth of a meter times one-eighth of a meter. This character right over here? Well, it's going to be Of these is going to be one-ninth of a meter. Rectangles per column, then the height of each Of these is one-fifth because we have five And by that same logic, each of these, if this whole thing is five-ninths, and the height of each That means that each of these is exactly one-eighth of a meter wide. Seven equal sections in the horizontal direction, Seven-eighths meters wide, and this is divided into And what's the area ofĮach of those rectangles? Well, if this is So, we have-so 35, we have 35 rectangles. So you can see we haveįive times one, two, three, four, five, six, seven. One, two, three, four, five of these rectangles. In each row we have seven of these rectangles. Two, three, four, five, six, seven or you could say If we go in the horizontal direction we have one, And to do that, what I'm going to do is I'm going to split this Think a little bit deeper about why that actually makes sense. Going to have eight times nine to give us 72. Times five in the numerator to get us 35, and then in the denominator, in the denominator we are And then we're going have,Īnd then we're going to have seven times, this in a new color, we're going to have seven To be equal to the meters times the meters give us square And what's that going to get us? Well, that's just going Seven-eighths of a meter times the height, times the height which is five-ninths of a meter. Well one way to think about it, is you can say our area, our area is just going to be What is its area? And I encourage you to pause the video to think about that. Got a rectangle here, it's five-ninths of a meter tall, and seven-eighths of a meter wide.
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