The area is the length times the width.
The perimeter is two times the length plus two times the width.
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The equation for a rectangle is h(height) x w(width) = area . By manipulating the equation we can show that width=area/length. So 132/12=11. This means the width of the rectangle is 11.
A rectangle with sides of 1cm and 6cm has an area of 6 cm2 and a perimeter of 14 cm. A rectangle with sides of 2cm and 3cm has the same area but its perimeter is 10 cm.
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 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.