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The computation of the area of a two - dimensional shape varies with the shape.

The common formulas include :

- Parallelogram, Rectangle or square: Length x width
- Triangle: 1/2 (height x width)
- Trapezoid : 1/2 (max width + min width) x height
- Circle : pi x radius2

* Regular Oval : can be estimated as 0.8 (length x width)

Length x width = area

Q: What is the formula for area?

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The area formula for the parallelogram is related to the area formula for a rectangle because you can make the parallelogram into a rectangle to find the area.

False. The surface area formula for a right cone is not the same as the surface area formula for an oblique cone.

The formula for the area of a square is s2 (sides squared)

Rectangle

Octagon

No because the formula for finding the area of an oval, which is an ellipse, is quite different

the formula for the area of a square or rectangle is length times height the formula for the area of a circle is pi times radius squared the formula for the area of a triangle is half base times height the formula for the area of a trapezoid is 1/2(top + bottom) times height

They both are a formula

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.

There can be no such formula in general. A formula will exist if the area is a regular polygon (or a circle).

what is the formula to finding the total surface area of a rhomboid?!

the formula for the area of a circle is 3.14 x radius squared