Composite Figures Flashcards
What is a composite figure?
A composite figure is a shape that is made up of two or more simple geometric shapes.
True or False: A composite figure can only consist of rectangles.
False
Fill in the blank: To find the area of a composite figure, you must first ____ the areas of the simple shapes that compose it.
calculate
List two examples of simple shapes that can be used to create a composite figure.
Circle and rectangle
Multiple Choice: Which of the following is NOT a simple geometric shape? a) Triangle b) Square c) Composite figure
c) Composite figure
How do you find the perimeter of a composite figure?
By adding the lengths of all the outer sides of the simple shapes that make up the composite figure.
True or False: The area of a composite figure can be less than the area of its individual components.
False
What is the first step in calculating the area of a composite figure?
Identify the simple shapes that make up the composite figure.
Fill in the blank: The area of a rectangle is calculated using the formula _____.
length × width
What is the formula for the area of a triangle?
Area = 1/2 × base × height
Multiple Choice: Which formula would you use to find the area of a circle in a composite figure? a) πr² b) 2πr c) r²
a) πr²
True or False: Composite figures can be made up of irregular shapes.
True
What is the significance of breaking down a composite figure into simple shapes?
It simplifies the process of calculating area and perimeter.
Fill in the blank: The perimeter of a composite figure is the total ____ of its outer edges.
length
What is a common mistake when calculating the area of a composite figure?
Forgetting to subtract overlapping areas.
Multiple Choice: When calculating a composite figure’s area, what should you do with the areas of the simple shapes? a) Add them b) Subtract them c) Multiply them
a) Add them
True or False: The dimensions of each simple shape in a composite figure must be known to calculate its area.
True
What is the area of a composite figure that consists of a rectangle with length 5 and width 3, and a triangle with base 3 and height 4?
Area = (5 × 3) + (1/2 × 3 × 4) = 15 + 6 = 21
Fill in the blank: When calculating the perimeter of a composite figure, you should focus on the ____ sides.
outer
Name one application of composite figures in real life.
Architecture or landscape design.
Multiple Choice: Which of the following shapes can be part of a composite figure? a) Rectangle b) Circle c) Both a and b
c) Both a and b
True or False: All composite figures have a fixed formula for area.
False
How can composite figures help in solving complex geometric problems?
By allowing the use of simpler shapes and known formulas.
Fill in the blank: The total area of a composite figure is the sum of the areas of all ____ shapes.
simple