Area = height * width
Area = 15 * 30 = 450 square units
Height = Area divided by Length
You need the length AND the height in order to find the area
multiply length times height times width
The one alternative to find the area of a rectangle is when you are given the length of one diagonal and its slope.
Rectangle: length x width triangle: (base x height)/2
Work out each figure separately then add them together: Area of a trapezoid = 0.5*(sum of parallel bases)*height Area of a rectangle = length*height
If the only information that you have is ... A) the figure is a rectangle, and B) the perimeter ... then you cannot calculate the area. The area of a rectangle is the length multiplied by the height., The perimeter is twice the length plus twice the height. So, a rectangle with a length of 9 units and a height of 1 unit will have a perimeter of 20 units and an area of 9 square units. Another rectangle with a length of 6 units and a height of 4 units will also have a perimeter of 20 units, but it will have an area of 24 square units. To be able to calculate the area from the perimeter you need to know one of two additional things - either one of the measurements, or the ratio of the height to the length.+++To summarise, you can, IF you know the ratio as mentioned. Then apply that to half the perimeter to find the length and breadth.
The length of a rectangle is twice its width. If the perimeter of the rectangle is , find its area.
The area of a triangle is expressed using the formula A=(1/2)(bh) Where A is area Where B is length of the base of the triangle. Where H is the height of the triangle. The area of a rectangle is A=BH, Where B is the length of the base of the rectangle. Where H is the height of the rectangle. Because a triangle, essentially, is a half of a rectangle, you find the area of the whole rectangle that the triangle comes from, then divide that in half.
Base x height for the area oF a rectangle(sometimes written as length x width). 1/2 x base x height for a triangle.
the length of a rectangle is 5 more then the width. Find the perimeter and the area of the rectangle
A rectangle 6.3 inches long and 12.2 inches high has an area of 76.86 inches.