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gayaneshka [121]
2 years ago
7

The vertical of three squares are joined to form a right triangle , what is the area of the largest square

Mathematics
2 answers:
lakkis [162]2 years ago
8 0

Answer:

43cm²

Step-by-step explanation:

let's first consider the area of a square.

the area is L² which means all sides are equal so we take the length times the breadth which is both equal because like we said all sides are equal.

so to find the side of the square using the area, we take the square root of both of the area.

\sqrt{25}  = 5

and also

\sqrt{18}  = 4.2

so we have the height of the triangle as 5cm and the base is 4.2cm.

now, from the triangle, since we have two sides and it's a right-angled, we can use Pythagoras' formula.

\sqrt{ {5}^{2}  +  {4.2}^{2} }  = 6.53cm

so the side 6.53cm is also the same side as the largest triangle. Since it's a square, all sides are equal. So we find the area of the largest triangle by using the formula

Area = L²

Area = 6.53²

Area = 42.6cm

the nearest cm square

Area = 43cm²

Lemur [1.5K]2 years ago
4 0

Check the picture below.

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The main objective of a questionnaire is it should gather data that is pertinent to the study or research. However, the tool must be designed in a way that the respondents will be able to understand it, answer it fairly quickly, and it should be descriptive and specific. It should be unbiased and should not lead the answers of the respondents in the direction favorable only to the researcher.

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This question is not descriptive enough because it is not well-defined in terms of the research. It is not clear or to the point because how will the respondent know based on their age what is young, middle-aged, or old?

An age range would be more appropriate, as it will prevent biases and is more definitive.

For example:    20>    20 - 29    30-39    40-49     50<

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B. Please select your favorite breakfast cereal from this list:

The problem with this question is that it limits the choices of the respondent, when it is asking what their favorite breakfast cereal is. The words "your favorite" indicates that the question seeks to find the preference of the respondent but it leads them to choosing only those provided by the researcher. It would be better if they added the option Others:________

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