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Find Area Problem in Multiple Choice Question
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In summary, the conversation is about finding the area of the blue shaded region in the given picture. The method discussed is to calculate the area of the square and the circle separately and then subtract the area of the circle from the area of the square. The final answer obtained is 21.5 cm2.
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I like Serena
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Hi susanto3311! :)
What is the area of a square with side 10?
And a circle with diameter 10?
What is the area of a square with side 10?
And a circle with diameter 10?
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susanto3311
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I like Serena said:
i don't understand what do you answer...
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susanto3311 said:
The blue area is the area of the square minus the area of the circle.
A square with side $s$ has area $s^2$.
A circle with diameter $d$ has area $\frac 1 4 \pi d^2$.
What would you get if you calculate those?
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susanto3311 said:
Yep. It's true. (Nod)
FAQ: Find Area Problem in Multiple Choice Question
1. How do you calculate the area in a multiple choice question?
The formula for finding the area in a multiple choice question depends on the shape being asked about. For example, the area of a rectangle is calculated by multiplying the length by the width, while the area of a circle is calculated by multiplying pi (3.14) by the radius squared.
2. Can I use a calculator to solve a multiple choice question about area?
Yes, you can use a calculator to solve a multiple choice question about area. However, it is important to make sure that the calculator is allowed for use during the exam or test.
3. Is it important to show my work when solving a multiple choice question about area?
Yes, it is important to show your work when solving a multiple choice question about area. This allows for partial credit in case you make a mistake in your calculations and also helps you to better understand the problem and your solution.
4. How do I know which formula to use for a multiple choice question about area?
The question will usually provide information about the shape being asked about, such as the dimensions or the relationship between different parts of the shape. Use this information to determine which formula is appropriate to use. You can also ask your teacher or refer to your class notes for guidance.
5. Is it possible to have a negative area in a multiple choice question?
No, it is not possible to have a negative area in a multiple choice question. Area is a measurement of space and cannot be negative. If your calculation results in a negative number, it means an error has been made and you should double check your work.