Area = length x wide = x(3x + 1) = 30
x(3x + 1) = 30
3x2 + x = 30
3x2 + x - 30 = 0
(3x + 10)(x - 3) = 0
3x + 10 = 0 or x - 3 = 0
x = -10/3 = -3 1/3 or x = 3
If the base is a rectangle, use the formula for the area of a rectangle.
The formula is for a square and rectangle is A=bh or A=lw
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?
In the formula for the rectangle, put the width equal to the length.
rectangle
The area formula for the parallelogram is related to the area formula for a rectangle because you can make the parallelogram into a rectangle to find the area.
The formula for the area of a rectangle is length x breadth. In order to prove this works, work out an area of a rectangle using that formula.
The formula for finding the surface area of a rectangle is length x width. 3.14 is the value for pi and is used for circles, cylinders, and spheres and has nothing to do with rectangles.
Area of a rectangle: a = l * w
If the base is a rectangle, use the formula for the area of a rectangle.
The formula is for a square and rectangle is A=bh or A=lw
A = lw Area of a rectangle = length times width
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?
In the formula for the rectangle, put the width equal to the length.
There is no formula for a rectangle. There are formula for calculating its area, perimeter or length of diagonals from its sides, or it is possible to calculate the length of one pair of sides given the other sides and the area or perimeter, or the two lots of sides given area and perimeter and so on.
Rectangle
rectangle