And that number must be six, because six times four equals 24. So our length has to be some number that when it's multiplied times four, we get 24 for the answer. Is 24 square meters, so the space the rectangleĬovers is 24 square meters, and the length, we don't know the length. We can actually solve it without ever even seeing the rectangle, because we know the area It might be helpful to visualize it, but I'm gonna show you here, Again, we can use ourįormula that tells us area of a rectangle is the Have a picture to look at, but we have enough information What is the length of the rectangle? So this time we don't even ![]() The width of the rectangle is four meters. So that means the width of our picture is eight centimeters. So what number timesġ0 equals 80 is eight. You cannot multiply feet times inches, it doesnt make a square measurement. It's multiplied times 10, we get 80 for an answer. Be sure to use the same units for all measurements. Thus, the area of the rectangle is A x y x ( 50 x) 50 x x 2. Then, since the perimeter is 100, we have 2 ( x + y) 100 y 50 x. A square is a rectangle with 4 equal sides. Is that we need our width to be a number that when 1 Suppose y denotes the length of the other side. The formula is: A L W where A is the area, L is the length, W is the width, and means multiply. Times the width, we don't know the width. We're told that thisĭistance from here to here, this length is 10 centimeters, Is 80 square centimeters, so we already know the area, and we can use that to help us. And on this picture, in this rectangle, we are told that our area ![]() So if we multiply the two side lengths of a rectangle, we get its area. Length of the rectangle, over here, the length, times the width. Rectangle can be found by multiplying the Know a special formula or a special equation to find width, but we do know one toįind area of a rectangle, so let's use that formulaĪnd see how it can help us. What is the width of the picture? So here's our picture, this super fun giraffe listening to music and our picture's shape is a rectangle and we're asked to find the The picture has an area of 80 square centimeters. Using the formula for the area of an equilateral triangle and side length 10: The length and width of the rectangle are 10 in and 4 in respectively, so its area is A 10×4 40 The area of the semi-circle is one-half the area of a circle.
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