All categories

3 years ago

Describe how to find the area of a circle that has only the circumference of the circle?

Mathematics

1 answer:

BlackZzzverrR [31]3 years ago

5 0

Circumference, C = 2 $\pi$ r. Find the radius using this formula then use it to find the area with A = $\pi$ $r^{2}$ .

OR use the formula A = $\frac{C ^{2} }{4\pi }$

Hope it helps. mark as brainliest if it does...

You might be interested in

Help pls ill mark brainliest

Naily [24]

Answer:

A. 2,310 sq ft

Step-by-step explanation:

Rectengle below:

A = l × b
A = 74 × 15
A = 1,110ft

Rectangle Above:

A = l × b
A = 50 × 24
A = 1,200ft

Area of the Playground:

1,110ft + 1,200ft
1,310 sq ft (A)

3 0

2 years ago

6m + 2 - 4m = help with this please

devlian [24]

The answer is: 2(m+1)

First combine like terms.
we do 6m-4m which is 2m
2m+2=?

Second we factor. We notice that both terms have 2.
2(m+1)

by distributive law, the 2 is distributed to m and 1.

8 0

2 years ago

What is 8 wholes and 3/4 subtracted by 2 wholes and 1/4

Pepsi [2]

6 wholes and 2/4))hhh

5 0

3 years ago

A school gymnasium is being remodeled. The basketball court will be similar to an NCAA basketball court, which has a length of 9

valkas [14]

Answer:

Perimeter of NCAA court=288 feet

Perimeter of new court=259.2 feet

Step-by-step explanation:

We are given that

Length of NCAA court, l=94 feet

Width of NCAA court, b=50 feet

Width of new court, b'=45 feet

We have to find the perimeter of an NCAA court and new court in the school.

Perimeter of NCAA court= $2(l+b)$

Perimeter of NCAA court= $2(94+50)$ feet

Perimeter of NCAA court=288 feet

When two rectangles are similar then the ration of their corresponding sides are equal.

Using the property

$\frac{Perimeter\;of\;NCAA\;court}{Perimeter\;of\;new\;court}=\frac{Width\;of\;NCAA\;court}{Width\;of\;new\;court}$

$\frac{288}{Perimeter\;of\;new\;court}=\frac{50}{45}$

Perimeter of new court= $\frac{288\times 45}{50}$ feet

Perimeter of new court=259.2 feet

6 0

3 years ago

I WILL MARK BRAINLIEST!!!!!! A direct variation function includes the ordered pair (4, 5). If y varies directly with x, and y is

nignag [31]

Answer: x=5

Step-by-step explanation:

$\frac{2}{14} =\frac{x}{35}$

$\frac{x}{35}=\frac{2}{14}$

simplify

$\frac{x}{35}=\frac{1}{7}$

multiply 35 on both sides

$\frac{35x}{35}=\frac{1\cdot \:35}{7}$

$\frac{1}{7} \cdot 35=5$

x=5

6 0

3 years ago