If the circumference of a circle measures 8 pi cm, what is the area of the circle in terms of pi?

Mathematics

1 answer:

Effectus [21]3 years ago

8 0

Answer:

803.84

Step-by-step explanation:

the formula for the area of a circle is A = π r2 which is pi times the radius squared.n in this case if the circumference is 8 cm then the radius would be half of the circumference which is 4. then you square 4 which is equal to 256. Then take 256 and multiply it by pi. 256 × 3.14 = 803.84. i hope this helped you.

You might be interested in

A researcher is interested in knowing whether responses to lowering the legal age for drinking alcohol varies by gender. Which s

likoan [24]

The statistical test that would be most appropriate determine the answer the researcher is interest in knowing is a chi-square test.

<h3>What is a chi-square test?</h3>

A chi-square test is a statistical test used to test the relationship between categorical variables. It is used to determine the difference between the expected data and the observed data is due to chance.

Chi squared = $\frac{(O_{i} - E_{i} )^{2} }{E_{i} }$

Where:

$O_{i}$ = observed value
$E_{i}$ = expected value.

The researcher is interested in knowing if the response to lowering the legal age for drinking alochol (observed value)) varies by gender (expected value). Thus, a chi-square test would be used.

To learn more about chi-square, please check: brainly.com/question/14082240

8 0

2 years ago

Drag the tiles to the correct boxes to complete the pairs. Not all tiles will be used.

pickupchik [31]

Answer:

i posted a picture

Step-by-step explanation: