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work it out
That is the definition of the area of a rectangle. It does not work for any other shape.
Multiply Pi (3.14...) by the radius of the circle squared, then divide that number by 2.
You need to break the shape up into different shapes. For example if you have a shape that is basically a triangle and a square merged together you will work out the squares area then the triangles area and add them together.
That is the formula for the area of a circle; r refers to the radius, and pi is approximately 3.14. r squared means that you multiply r x r.
To work out the area of a composite shape, you will have to divide it into smaller figures.
Area of any circle = pi*radius squared
work it out
A rectangle is a 2D shape, therefore not having a "surface" The only "surface" a rectangle has is it's area.-------------------------------------ll 4 metresll------------------------------------l8 metresTo work out the area you simply multiply the height and the length together.In this case the height is 4 and the length is 8. 4 x 8 = 32.The area is 32. BUT since this is area, me must state our answer in (measurement) squared. in this case it is in metres, so our answer must be in metres squared. Our answer was 32 so we add the metres squared and we have 32 metres squared. Voila!
width times length multiplied.
yes
Length multiplied by width equals the area of a square or rectangle A=LxW Your answer will be in units squared.
You don't mention whether the 4 feet is the circumference, diameter or radius. The area of a circle is pi times the radius squared. If 4 feet is the circumference, the area is about 1.3 feet squared. If 4 feet is the diameter, the area is about 12.6 feet squared. If 4 feet is the radius, the area is about 50.3 feet squared.
You don't mention whether the 4 feet is the circumference, diameter or radius. The area of a circle is pi times the radius squared. If 4 feet is the circumference, the area is about 1.3 feet squared. If 4 feet is the diameter, the area is about 12.6 feet squared. If 4 feet is the radius, the area is about 50.3 feet squared.
That is the definition of the area of a rectangle. It does not work for any other shape.
Multiply Pi (3.14...) by the radius of the circle squared, then divide that number by 2.
pi times the radius squared or pi (approx 3.14) times the diameter