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Subjects>Math>Geometry

How do you work out the area of a composite shape?

CharlotteGlenniegp40... ∙

Lvl 1

∙ 11y ago

Updated: 4/28/2022

To work out the area of a composite shape, you will have to divide it into smaller figures.

Wiki User

∙ 11y ago

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Q: How do you work out the area of a composite shape?

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How do you find out the area of a composite figure?

There are different formulae for different shapes. Try to break down the composite firgure into components that you can add together (or subtract one from the other). An annulus, for example, is a big circle minus a smaller circle. Areas of squares, triangles, trapeziums, circles, semicircles and the process described anove will answer most high school questions. For more complex figures you may need to look elsewhere. Copy the shape onto a lamina of uniform density. Cut out the shape and find its mass. Also find the mass of a unit square of the lamina. Then area of composite shape = size of unit shape*mass of composite shaped lamina/mass of unit shape.

What is a figure that is made up of more than one shape?

Composite

How do you work out the base area of a prism?

That depends on the shape of the base. A prism can have any sort of polygon for its base.

Is area in the inside of the shape or the outside?

area is inside the shape/figure

What is the Square root of an isosceles triangle?

It is actually impossible to work out the square root of a shape but you can work out the square roots of the interior and exterior angles, the area and the perimiter

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