Well if you just have a rectangle or a square, that's easy. Just times the length by the width. For example:
Length = 5cm
Width = 6cm
Area = 20cm squared
When you write the area, put a little '2' by the measurement to show 'squared'.
However, if you have an irregular shape, split it into small rectangles then use the steps above on each rectangle to find the area. Then add them all together - remembering the little 2 to show that it's squared.
For triangles, just use the ordinary rectangle steps, then half the answer. This is because if you put a triangle on that was the same size, it would be a rectangle (sorry, I'm not too good at explaining).
If you have other shapes - ask someone else. I'm not really sure for that.
Now, next lesson, how to do long multiplication!
Just kidding, don't worry!
Sorry it's so long and boring!
length X width area LXW=A
Total surface area = (2*pi*radius2)+(diameter*pi*height)
A =Lw....A- areal - lengthw - width
Total surface area = (2*pi*r2)+(pi*r2) Area = 300*pi in square units
it is actually very easy what you do is find the area of both shapes then if your problem is like find the chances of hitting the shaded area you do area of shaded divided by the total area of the whole object then multiply that by 100
Find the total land area of Belarus.
Find the area of each face separately and then add them together for the total surface area.
first find the area of the base. then multiply it by the height and divide it by three.
length X width area LXW=A
TOTAL AREA=201, REQUIRED AREA=201/6=33.3. As 60 degrees covers only 60% or one sixth of a circle, to calculate required area, divide the total area by 6.
Total surface area = (2*pi*radius2)+(diameter*pi*height)
whats the object
To find the lateral area of a cylinder, multiply the circumference (πd) by the height (πdh). After you have this, you can find the total surface area by adding twice the area of the base (2πr2).(Lateral area = πdh), (Surface area = πdh + 2πr2).
The surface area of a space figure is the total area of all the faces of the figure
By finding the total area, you can see if all of the areas of your shapes combined match the total area of the rectangle. It's a safe-check.
A =Lw....A- areal - lengthw - width
Total surface area = (2*pi*r2)+(pi*r2) Area = 300*pi in square units