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
Len [333]
3 years ago
11

A circle is inscribed in a square. Write and simplify an expression for the ratio of the area of the square to the area of the c

ircle. For a circle inscribed in a square, the diameter of the circle is equal to the side length of the square.
Mathematics
1 answer:
STALIN [3.7K]3 years ago
8 0
 Best Answer:<span>  </span><span>So first we need both areas, then we can relate them, and then divide the circle by the square: 

A(circle) = πr^2 
A(square) = L*W or (2r)*(2r) which is (2r)^2 

For the square, we know this is true because because the radius is half the diameter, so if we multiply the radius by 2, we get the length of one side of the square. We also know that the lengths of both sides of the square are the same by definition of a square. 

Ratio: (πr^2)/(4r^2) = π/4</span>
You might be interested in
HELP!!!!!!!!!!!!!!!!!!!!!!!
Agata [3.3K]

Answer:

B would be (-1, -2)

C would be (-1, 1)

A would be (-4, -2)

Step-by-step explanation:

The ordered pairs are affected by the y value. The X value stays the same since you didn't move the shape any to the right or left. The y values went down three on all of the points because you moved the whole shape down three spots.

I hope this helps! Please mark as brainliest! Just ask if you need anymore help! :D Good Luck!

8 0
3 years ago
3a² + 11a – 42<br><br>this is factoring in algebra 2 (high school) <br>​
N76 [4]

To factor,

<h2>[[[</h2>

1) First multiply coefficient of a² and constant no,

That is,

3×(-42)=-126

Since the<u> resultant no is negative</u>, you should find two such factors of 126 <u>which</u> <u>will give us the coefficient of a (=11)</u> on subracting those factors.

2) Find the factor

126=2×3×3×7

=18×7

18 and 17 are factors of 126

Also,18-7 =11.

So they are required factors for factoring,

<h2>]]]</h2>

Once you have understood above steps you can solve on your own. All you need to do is split 11 into factors ,take common terms and you will get answer.

<u>Answer:</u>

3a²+11a-42

=3a²+(18-7)a -42

=3a²+18a-7a-42

=3a(a+6) -7(a+6)

=(a+6)(3a-7)

3 0
3 years ago
find the value of cos theta, if sin theta= 1/2; 0 degrees greater than or equal to theta &lt; 90 degrees
vagabundo [1.1K]

Answer:

Step-by-step explanation:

According to the ratios table, if

sin theta = 1/2

Then theta = 30°

Cos theta = cos 30° =root 3 /2

6 0
3 years ago
Read 2 more answers
Figure A is a scale image of Figure B.
Kay [80]

Answer:

12

Because:

30 is to 25 as x is to 10.

As an equation: 30/25 = x/10

Do this equation by: look at image

5 0
2 years ago
The student council set a goal of raising at least $500 in flower sales. So far it has raised $415.
zzz [600]
Hi There!

Ok, so student council needs 500 dollars from flower sale, and they already have 415, To find how much they need you have to subtract 500-415, your final answer should be 85, so the student council needs $85 dollars more to reach their goal.

Hope This Helps :)
6 0
3 years ago
Read 2 more answers
Other questions:
  • Help on geometry. Please
    6·1 answer
  • Find the next term of the following sequence.
    6·2 answers
  • MATH!!!!!!!! Help please
    8·1 answer
  • What percent of $375 is $11.25 and what percent of $56.25 is $11.25?
    7·2 answers
  • Graph x&lt;2.
    9·1 answer
  • 10 11/35 divided by 3 4/5
    15·1 answer
  • HELP ASAP!!!! The difference between a number and 8 is 32
    13·1 answer
  • Question 3<br> 65% of 700<br><br><br> Question 4<br> 25% of 84
    11·2 answers
  • An element with a mass of 990 grams decays by 16.9% per minute. To the nearest Minute, how lon will it be until there are 80 gra
    13·1 answer
  • Can someone explain this step by step? I'm very confused on how to solve it. Thanks!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!