A circle has an area of 441 . what is the circumference

Mathematics

1 answer:

serg [7]3 years ago

3 0

The circumference would be 74.44. hope this helps

You might be interested in

Given 3X=-15<br> Prove X =-5

BartSMP [9]

Answer:

X = -5

Step-by-step explanation:

3X=-15

Lets solve the equation for x. We will isolate x by dividing each side by 3

3X/3 = -15/3

X = -5

4 0

3 years ago

Read 2 more answers

Can someone please help me? Please

vesna_86 [32]

If length AM = AK then it is isosceles.

M(-1,-6), A(-4,5)

AM=((5-(-6))²+(-4-(-1)))^(1/2)=11.401

A(-4,5) and K(5,-2)

AK=((-2-5)²+(5+4)²)^(1/2)=11.401

so the triangle is isosceles.

3 0

3 years ago

Miss Jones wants to buy at least 10 books. Each paperback book costs an average

puteri [66]

Hello guys not quite sure this

8 0

3 years ago

If a windshield wiper covers an area of approximately 160 square inches when it rotates at an angle of 84°, find the length of t

sergey [27]

General Idea:

We can use the below formula to find the area of sector (A), when angle of sector and radius is given:

$A=\frac{\theta}{360} \cdot \pi \cdot r^2$

Applying the concept:

We need to substitute 84 for $\theta$ and 160 for A in the above formula:

$160 = \frac{84}{360} \cdot \pi \cdot r^2\\ Solving \; for \; r\\ \\ \frac{84\pi}{360} \cdot r^2=160\\ Multiply \; the \;reciprocal\; \frac{360}{84\pi} \;on\;both\;sides\;of\;the\;equation\\ \\ r^2=160\cdot \frac{360}{84\pi} \\ \\ r^2=\frac{57600}{84\pi} \\Taking \;square\;root\;on\;both\;sides\\ r=\sqrt{\frac{57600}{84\pi}} \approx14.8\; inch$

Conclusion:

If a windshield wiper covers an area of approximately 160 square inches when it rotates at an angle of 84°, the length of the wiper to the nearest tenth of an inch is <u>14.8</u>

6 0

3 years ago

How can you use rate tables to find missing values

9966 [12]

i think its the patterns?

8 0

3 years ago