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.
length*breadth
A = LW divide by W to both sides A/W = L
a rectangle has four right angles and opposite sides are all the same length This means that a parallelogram is not always a rectangle, but a rectangle is always a parallelogram, by definition.
the area of a rectangle = length x widthwe can rearrange this to give uslength of a rectangle = area/ width
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!
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.
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
Use squares and try it out for yourself. Get a number of squares and make a rectangle 3 squares long by 4 squares wide. Count the squares. You should have 12 squares (or 3*4). That's the best way I know to prove the formula.
A = lw Area of a rectangle = length times width
In the formula for the rectangle, put the width equal to the length.
Rectangle
rectangle
Area of rectangle is l x b. Where l is length and b is breath of the rectangle.
2
The area of a rectangle is length times width, expressed in square units.