Answer:
153.9
Step-by-step explanation:
You use the formula πr^2 for the area, where r is the radius of the circle which is equal to half the diameter
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Answer:

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Step-by-step explanation:
Look at the photo below for the details.
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Answer:
its B. -3
Step-by-step explanation:
Remove 3 negative tiles .
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Answer:
Whatever the length and width of the first triangle are take them and multiply by three. Place them in their respective sides of the new rectangle. The answer should be 9.
Step-by-step explanation: