1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
lyudmila [28]
2 years ago
12

The area of the circle

Mathematics
2 answers:
IgorC [24]2 years ago
8 0

\qquad\qquad\huge\underline{{\sf Answer}}♨

Let's find the Area of given circle ~

Area of circle is :

\qquad \tt  \dashrightarrow \:  \pi{r}^{2}

where, r = radius

  • \tt r =  d/2 = 14/2 = 7 km

Now, let's calculate it ~

\qquad \tt  \dashrightarrow \:  a = \pi{}^{}×(7)²

\qquad \tt  \dashrightarrow \:  a = 49\pi{}^{}km²

That's the answer I terms of π, but we can also plug in the appropriate value of pi as 3.14

\qquad \tt  \dashrightarrow \:  a=49\times 3.14{}^{}

\qquad \tt  \dashrightarrow \:  a= 153.86 \:  \: km²

\qquad \tt  \dashrightarrow \:  area \approx 154\:  \: km²

Andrei [34K]2 years ago
5 0

The area of the circle formula --> \pi r^2

  • \pi ≈ 3.14
  • r: length of radius --> 7km

            <em>Length of radius is half of diameter which is 14km long</em>

<em />

<em>         </em>Area = \pi r^2=\pi (7km)^2=(49\pi )km^2=153.86km^2<em>  </em>

Hope that helps!

You might be interested in
Help please ASAP !!!
Arisa [49]

For this case we have that by definition of trigonometric relations of rectangular triangles, that the sine of an angle is given by the opposite leg to the angle on the hypotenuse of the triangle. So:

Sin (45) = \frac {leg} {h}

Where h is the hypotenuse.

\frac {\sqrt {2}} {2} = \frac {leg} {h}

We cleared h:

h = \frac {2leg} {\sqrt {2}}

We rationalize:

h = \frac {2leg} {\sqrt {2}} * \frac {\sqrt {2}} {\sqrt {2}}\\h = \frac {2 \sqrt {2} * leg} {2}\\h = \sqrt {2} * leg

ANswer:

Option A

3 0
3 years ago
Magan has a bag that contains pineapple chews, cherry chews, and lime chews. He performs an experiment. Magan randomly removes a
scZoUnD [109]

Answer:

The Answer is 0.04

Step-by-step explanation:

6 0
2 years ago
A random survey of people at a mall shows that 22 prefer to take a family trip by car, 18 prefer to travel by plane, and 4 prefe
o-na [289]

Answer:

409

Step-by-step explanation:

18          x

---    =    ---

22        500

18 x 500 = 9000

9000/22 = 409

7 0
3 years ago
Read 2 more answers
What is the probability of choosing a card from a deck of cards that is a heart or a nine? ​
Mila [183]
8 out of 52. There are 4 nine cards and 4 heart cards. There are 52 cards in the standard deck. So it is an 8 out of 52 chance that you will choose either a heart or a nine.
3 0
3 years ago
Find the angle that the line through the given pair of points makes with the positive direction of the x-axis
alexdok [17]

Answer:

Therefore the angle that the line through the given pair of points makes with the positive direction of the x-axis is 45°.

Step-by-step explanation:

Given:

Let

A(x₁ , y₁) = (1 , 4) and  

B( x₂ , y₂ ) = (-1 , 2)

To Find:

θ = ?

Solution:

Slope of a line when two points are given is given bt

Slope(AB)=\dfrac{y_{2}-y_{1} }{x_{2}-x_{1} }

Substituting the values we get

Slope(AB)=\dfrac{2-4}{-1-1}=\dfrac{-2}{-2}=1\\\\Slope=1

Also Slope of line when angle ' θ  ' is given as

Slope=\tan \theta

Substituting Slope = 1 we get

1=\tan \theta

\tan \theta=1\\\theta=\tan^{-1}(1)

We Know That for angle 45°,

tan 45 = 1

Therefore

\theta=45\°

Therefore the angle that the line through the given pair of points makes with the positive direction of the x-axis is 45°.

5 0
3 years ago
Other questions:
  • The absolute value is 3 and the number is to the left of 0 on the number line. -3,3,-1,-2
    13·1 answer
  • PLEASE HALPPPPPPP
    5·1 answer
  • One building is 15 feet tall and another is 90 feet tall. proportionally, the height of the smaller building is
    15·1 answer
  • 63 hundreds 5 tens 2 ones=
    12·2 answers
  • Which symbol correctly compares the two fractions?
    12·1 answer
  • What is the absolute value of a number
    10·1 answer
  • Help me plss to find the area​
    7·1 answer
  • Wade has $475 in a savings account at the
    6·1 answer
  • How do I find the percentage if my problem is 8:1
    8·1 answer
  • Which is the approximate area of a circular clock with a diameter of 10 inches?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!