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A group of students are finding the perimeters of rectangles whose lengths and widths are whole numbers they notice that all the perimeters are not even numbers is this always true?
Wiki User
∙ 15y ago
No, it is always false. Perimeter of a rectangle= 2l + 2w, l= length, w=width. 2*any whole number, regardless odd or even, is even. Thus 2l is even and 2w is even. The sum of two even numbers is always even.
Wiki User
∙ 15y ago
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If the ratio of the side lengths of two similar polygons is 31 what is the ratio of the perimeters?
Their perimeters are in the same ratio.
Ron will use all 900 meters of fence and wants to enclose a rectangular region that contain four congruent rectangular pens within it Calculus optimization i have further questions Please help?
Optimization is all about finding equations that involve your variables, and manipulating those equations to meet the stated constraints. The first step is to find two or more equations involving one or more of your variables. Here, we have cost and two separate lengths. Let's call the long side of each of the small congruent rectangles "l" and the short side "w." You know that you will have four of these rectangles, and because of the situation and the units you know that you will be measuring perimeter. Therefore, the sum of the perimeters of all four congruent rectangles is 4(2l+2w) or 8l+8w. I'm unclear from your question whether Ron will be using the 900 meters to form the four rectangles, or to form the rectangles and to surround them with fencing. Can you give me more information?
If the areas of two similar decagons are 625 sq ft and 100 sq ft what is the ratio of the perimeters of the decagons?
If lengths are in the ratio a:b, then areas are in the ratio a2:b2 since area is length x length. If areas are in the ratio c:d, then lengths are in the ration sqrt(c):sqrt(d). Areas of decagons are 625sq ft and 100 sq ft, they are in the ratio of 625:100 = 25:4 (dividing through by 25 as ratios are usually given in the smallest terms). Thus their lengths are in the ratio of sqrt(25):sqrt(4) = 5:2 As perimeter is a length, the perimeters are in the ratio of 5:2.
How do i draw all possible rectangles with a perimeter of 30cm and sides whose lengths are whole numbers?
The answer is, you can draw a rectangle with these measurements: 6cm and 9cm 5cm and 10cm 7cm and 8cm
How do you find perimeter of a quadrilateral after finding midpoints?
If you want the perimeter of a quadrilateral, then finding the midpoints is a complete waste of time! Simply add together the lengths of the four sides.
A group of sudents are finding the perimeters of rectangles whose lengths and widths are whole numbers they notice that all the perimeters are not even numbers is this always true?
No, take the rectangle that is 4x6. The perimeter is 20 which is even.
What are the lengths of the sides of 3 rectangles with perimeters of 14 units?
2 by 6 1 by 6
What are the lengths of the sides of 3 rectangles with perimeters of 12 units?
The following rectangles all have perimeters of 12: 1 by 5 1.2 by 4.8 1.4 by 4.6 1.6 by 4.4 1.8 by 4.2 2 by 4 2.3 by 3.7 2.5 by 3.5 2.8 by 3.2 3 by 3 There are an infinite number more.
What are the lengths of the sides of three rectangles with perimeters of 12 units using only whole numbers?
1 x 5 2 x 4 3 x 3
If the ratio of the side lengths of two similar polygons is 31 what is the ratio of the perimeters?
Their perimeters are in the same ratio.
What are the lengths of sides of a quadrilateral if the perimeter is 54 inches?
What are the lengths of the sides of a quadrilateral if the perimeters is 54 inches
Why could two students obtain different values for the calculated areas of the same rectangle?
because it was estimation, the lengths were different and the rectangles are not the same
What are the lengths of the sides of 3 rectangles with perimeters of 14 units It has to have whole numbers?
1 and 62 and 53 and 41 and 62 and 53 and 41 and 62 and 53 and 41 and 62 and 53 and 4
What is the perimeter of 4 inches?
Closed series of lines on paper have perimeters. Lengths don't.
What is true about rectangles but not about squares?
rectangles have 2 sets of parellel sides but 2 different pairs of side lengths
How many rectangles have the same area but different perimeters?
Infinitely many. Suppose the area of the rectangle is 100. We could create rectangles of different areas: 100x1 50x2 25x4 20x5 10x10 However, the side lengths need not be integers, which is why we can create infinitely many rectangles. Generally, if A is the area of the rectangle, and L, L/A are its dimensions, then the amount 2(L + (L/A)) can range from a given amount (min. occurs at L = sqrt(A), perimeter = 4sqrt(A)) to infinity.
What is the size of a maple leaf?
This can vary, between many lengths and widths and heights and perimeters of the leaf.
