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photoshop1234 [79]
2 years ago
6

Sometimes we need to find the area of a circle and sometimes we need to find the circumference. Write at least three real-world

situations for each. Explain what measurements would need to be made in each situation and how area or circumference would be found.
Mathematics
2 answers:
ExtremeBDS [4]2 years ago
8 0

Answer:

0.05

Step-by-step explanation:

its 0.05 ezzzzzzzzzzzzzzzzzzzz

Alekssandra [29.7K]2 years ago
8 0
One situation would be a round flowerbed. The edge would have bricks around it, and you’d need the circumference for that. You’d measure the diameter of the circle, and multiply that by pi.
Circumference = (pi)(diameter)

A first for area is the same flowerbed but filling it in with mulch around the flowers. For that, you’d take 1/2 the diameter to find the radius. Area = (pi)(radius)^2

A second for circumference is measuring a distance traveled by a wheel. If you needed to measure distance from one point to the next, and you know you have a 16 inch wheel, you can measure how many rotations of that will go from point A to point B. Calculate the circumference, multiply that by how many toes the wheel rotated for that distance, and you know how far you traveled.

A second for area is figuring out how much cake batter you would put in a round cake pan. If you have a 9 inch cake pan, the radius is 4.5 inches. Area = (pi)(4.5)(4.5)

A third for circumference is to figure out how much curb material you would use to pave the edge of a dead-end street. It might only be a 1/2 circle, but then you calculate the circumference and divide by half.

A third for area is calculating the area of a pizza. Most restaurants tell you how many inches the pizza is, which is the diameter. Divide that in half and calculate the area.

Do this last one with friends and say that whoever calculates the area first doesn’t have to pay for their share of the pizza. (No one would really do that, but it might make your math teacher smile)

You might be interested in
The angles of a triangle add up to 180 degrees.
Alex_Xolod [135]

Answer:

33°

Step-by-step explanation:

We were given that:

1- The angles of a triangle add up to 180 degrees

2- The second angle is 15 degrees larger than the smallest angle

3- The third angle is 3 times as big as the smallest angle

So, first of all, let's call the smallest angle x.

the second angle will be (x + 15°) since it is 15 degrees greater than the smallest angle

and the third will be 3x, since it is 3 times bigger than the smallest angle.

With the information we have, we can form an equation!

180° = x + (x+ 15°) + 3x

180° = 5x + 15°

180° - 15° = 5x + 15° - 15°

165° = 5x

165°/5 = 5x/5

33° = x

therefore, the smallest angle measures 33° degrees, the second angle measures 48° and the third angle measures 99°.

99° + 33° + 48° = 180°

so it is safe to say this answer is correct!

8 0
2 years ago
How to get the answer for 2 3/4 gallons and 5/8 to equal 1 23/32
Alecsey [184]

Answer:

jhwgehebf

Step-by-step explanation:

bwjsfehoal topu

7 0
2 years ago
Help with this<br> twentycharacters
olya-2409 [2.1K]

Answer:

f(x) = 150-25x

Step-by-step explanation:

200-50=150.

Take the 150 and insert it there.

Each lesson is $25, so you multiply 25 by 2 every lesson. Example= 150-25=125-25=100-75 and so on.

6 0
3 years ago
Why is - t - 3 written as 3 - t? Is it wrong if it is left as -t -3?
Eddi Din [679]

-t-3 and 3-t are not the same since t-3 would result in a negative answer since both -t and -3 are negative. While in t-3 t is positive and -3 is negative. it is wrong if its left as t-3 since -t-3=3-t is false.

4 0
3 years ago
Which of the following fractions have repeating decimal representations? Which have terminating decimal representations?
natali 33 [55]

Repeating decimal representation will be 3/13, 7/24. Terminating decimal representation will be 3/16, 4/125.

<h3>What is decimal?</h3>

The accepted method for representing both integer and non-integer numbers is the decimal numeral system. It is the expansion of the Hindu-Arabic numeral system to non-integer values. Decimal notation is the term used to describe the method of representing numbers in the decimal system. The base-10 number system, arguably the most widely used number system, is referred to as decimal. The decimal number system consists of ten single-digit numbers: 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. The number following nine is 10.

Here,

Repeating decimal representation,

=3/13, 7/24

Terminating decimal representation,

=3/16, 4/125

3/13 and 7/24 will be repeated in decimal form. The final two decimal places are 3/16 and 4/125.

To know more about decimal,

brainly.com/question/25903211

#SPJ1

7 0
1 year ago
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