What is the area of the flower represented in the diagram?
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What is the area of the flower represented in the diagram?
To solve this problem, we'll calculate the areas of the different circles and then add them accordingly. This approach requires determining each circle's area as follows:
Let's begin:
First Circle: Radius
Area
Second Circle: Radius
Area
Third Circle: Radius
Area
Fourth Circle: Radius
Area
Fifth Circle: Radius
Area
Now, summing the areas in terms of , we find:
Total Area
Combine like terms:
Total Area
Total Area
Therefore, the area of the flower depicted in the diagram is .
Are the expressions the same or not?
\( 3+3+3+3 \)
\( 3\times4 \)
Because area depends on radius squared, not just radius! The area of a circle with radius 5 is , but two circles with radii 2 and 3 have total area , which is different!
Square each radius separately using the area formula. Variable radii like give areas with , while constant radii like 3 give numerical areas. Keep them separate until the final step.
Group terms with the same variables together: all the terms go together , and all the constant terms go together .
The π comes from the circle area formula and should stay in your answer unless specifically asked to use a decimal approximation. Leaving π makes your answer exact rather than rounded.
Remember that . You can verify: ✓
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