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If the area of a rectangle is 12x2 - 19x - 21 and one side is 4x - 3 what is the other side?
Wiki User
∙ 15y ago
Since the area of a rectangle is equal to the product of its two sides, then 4x - 3 is one factor of the product 12x^2 + 19x - 21 which represents the area. So the other factor is 3x + 7.
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Or the given side could be 4x + 3 and the other side is 3x - 7, in order to obtain the area 12x^2 - 19x - 21.
Wiki User
∙ 15y ago
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If you double the side lengths of a rectangle why is the area of the new rectangle not twice as big as the original?
Look at it this way, suppose x is one side of the rectangle and y is the other. Then the area of the rectangle would be xy. Now if you double each side of the originial rectangle you would have each side as 2x and 2y. So the area of the new rectangle would be 2x*2y or 4xy. As you can see the new area is 4 times larger than the original.
What is the area of a rectangle one side is 20mm and the other is 15mm?
300 mm2
What is the maximum area for a rectangle with a perimeter that is 88?
A square of side 22 has an area of 484. Rectangle 23 x 21 has an area of 483...
How do you find the area of a rectangle with a triangle attached to the side?
you split your shape in half, (The rectangle and the triangle), by putting a line through it and then calculate the area of the rectangle and then calculate the area of the triangle, half the area of the triangle then add the area of the triangle and the rectangle together!Then you should have your answer!
If the area of a rectangle is 18 square inches and the length of the rectangle is twice it's width what is the length and width of the rectangle?
A rectangle with one side that is double the length of the other side can be seen as two squares beside each other, that are half the area of the original rectangle, in this case 18 square inches / 2 = 9 square inches. The side of a square is the square root of the area, in this case the square root of 9 square inches, which is 3 inches. Now think about the rectangle again. What we just counted was the side of a square that made up one half of the rectangle you wanted to calculate the area of. So the shorter side of the rectangle is the same as our square, and the longer side is double the length. So the width of the rectangle is 3 inches, and the length is 2 * 3 inches = 6 inches. Or: Area = length x width (A=lw) Area = 18 (in2) Width = w Length = twice width (2w) 18 = (2w)w 18 = 2w2 9 = w2 3 = w The width is 3 in., the length (2w) is 6 in.
What is the formula of a irregular rectangle?
The answer depends on what aspect of a rectangle: its angles, area, side lengths, diagonals, other?The answer depends on what aspect of a rectangle: its angles, area, side lengths, diagonals, other?The answer depends on what aspect of a rectangle: its angles, area, side lengths, diagonals, other?The answer depends on what aspect of a rectangle: its angles, area, side lengths, diagonals, other?
What is the area of a rectangle with one side 30mm and the other side 5cm?
yeah
What is the length of a side of a rectangle when the width is not given?
you divide the area by the length and you have the other side
If you double the side lengths of a rectangle why is the area of the new rectangle not twice as big as the original?
Look at it this way, suppose x is one side of the rectangle and y is the other. Then the area of the rectangle would be xy. Now if you double each side of the originial rectangle you would have each side as 2x and 2y. So the area of the new rectangle would be 2x*2y or 4xy. As you can see the new area is 4 times larger than the original.
What is the area of a rectangle one side is 20mm and the other is 15mm?
300 mm2
Why does the area of a rectangle change?
if you change the side length the area will change. It is possible to change them and not change the area. For example make side twice and long and the other half as long. But in general, if you change the lengths of the sides the area of the rectangle changes.
A rectangle has primeter 20mexpress the area of the rectangle as a function of the length of one of its side?
If the perimiter is 20 and one side is [[length]] then the other side is (10 - [[length]]). So the area is: [[length]] x (10 - [[length]]) square metres.
How does quadrupling the side lengts of a rectangle affect the area?
rectangle area is width x height so if each side quadruples area changes by 16
What is the area of a rectangle with one side 20 and the other x 10?
Area = 20*10 = 200 square units
Can two different size rectangles have the same area?
yes. is both sides equal the same thing (area) it's possible. example: if side a from rectangle 1 is 8, and the other side is 2, it's area is 16. and if the area of the other rectangle is also 16, the sides can also be 4, and 4.
How do you find the unknown side of a rectangle if you have the area and one side?
Divide the area by the known side.
Area of a rectangle 70 degree diagonal and side 60 feet long?
Other side = 60 tan 20, so area of rectangle = 3600 tan 20 = 3600 x 0.36397= 1310.29 sq ft
