Area of a parallelogram = length*perpendicular height
The measurements that you need to find the area of a square is Area = Length x Width.
you need to find the area
If you need to find how big something 2-D is you need to know how to find the area of various shapes. If carpeting you need area. You don't think about it but area is very important. Math isn't useless and is very important int he real world.
You need the area to find the volume of an object.
find surface area
Not easily. You need to find the area or perimeter of the components and sum them.
You don't need to find it. From what your question states the area is already given to you.
to find the surface area of the triangle we just need to multiply the length with breath. area=lengthXbreadth
The surface area of a hexagon is the same as its area. You will normally need to split the hexagon into triangles, find their area and sum these.
You will need to find the surface area of each face and add them together.
You need to give the shape.
You would need to divide it into triangles, find the area of each triangle and sum these areas together.