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
gtnhenbr [62]
3 years ago
15

How can you find the area of a polygon that is not for which you know an area formula

Mathematics
1 answer:
kipiarov [429]3 years ago
6 0

Answer:

See below.

Step-by-step explanation:

If it is a regular polygon then you can look up the formula or break it into shapes you do know the formula.

If it is irregular or a composite figure, break it into regular polygons which do have formulas to find the area. Here is an example:

Example:

Find the area of the composite figure by splitting the figure into two shapes - two rectangles.

One rectangle is 2 x 9 = 18.

The other rectangle is 2 x 4 = 8.

Together the area is 18 + 8 = 26.

You might be interested in
Need help in solving this problem. Section is under limits at infinity, horizontal asymptotes...
mojhsa [17]
 <span>(a) you can show the concentration by: 

amount of salt / amount of water 


amount of salt 

= 30g / L 

= [ 30 * 25g ] / [ 25L ] , 25L = 1 min 

= [ 30 * 25g ] / min 


amount of water 

= 5000 + 25t 


[ 30 * 25t ] / [ 5000 + 25t ] 

= [ 30 * 25t ] / 25*[ 200 + t ] 

= 30t / [ 200 + t ] yeah 


(b) 


lim t->∞ [ 30t / ( 200 + t ) ] 

= lim t->∞ [ ( (1 / t) * 30t ) / ( (1 / t) * ( 200 + t ) ) ] 

= lim t->∞ [ 30 / ( (200 / t) + 1 ) ] 

= 30 / ( (200 / ∞) + 1 ) 

= 30 / 1 

= 30


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
</span>
8 0
3 years ago
A recipe calls for mixed nuts with 50% peanuts. 1/2 pound of 15% peanuts has already been used. How many pounds of 75% peanuts n
Galina-37 [17]
Now you have
<u />
<u>(.15)0.5 lb peanuts</u>     =     <u>0.075 lb peanuts</u>
0.5 lb  nuts                              0.5 lb nuts

for every pound of 75% mixed nuts you add, you get .75 lb peanuts, how many pounds, x, do you need to add to get the ratio 50 to 100?

<u>0.075 lb peanuts + 0.75x lb peanuts</u><em>       =    <u /></em><u>   50   </u><u>
</u>0.5 lb nuts + x lb nuts                                      100

cross multiply

(0.075 + .75x) 100 = (0.5 + x) 50
7.5 + 75x = 25 + 50x
25x = 17.5
x = 0.7 lb of 75% peanuts

6 0
3 years ago
lauren has 4 3/8 cups of flour. each batch of her pancake batter needs 1 1/4 . how many batches of ger batter can she make
Citrus2011 [14]
I think it is 4 1/8. Sorry If I am wrong, just trying to help.
6 0
3 years ago
Read 2 more answers
What is the surface area of a cube that has edges 3 cm long
dimulka [17.4K]

Answer:

9cm^2

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Please help me im in a rush
ankoles [38]

Answer:

Step-by-step explanation:

A = 4 ft

B = 10 ft

C = 8 ft

D = 6 ft

b) Area of rectangle = length * width

Area of 2 triangle = base * height

Area of right triangular prism = area of 2 triangles +area of left rectangle + area of middle rectangle + area of right rectangle

  = 6 * 8  + 4* 6 + 4 * 10 + 4 * 8

  = 48 + 24 + 40 + 32

  = 144 ft²

3 0
2 years ago
Read 2 more answers
Other questions:
  • Calculate the function rule for the following table:
    15·1 answer
  • A grocery store clerk has 16 oranges and 20 apples and 20 peers the clerk needs to put equal number of apples ,oranges and peers
    8·2 answers
  • Is the square root of 15 greater than, less then , or equal to 4?
    15·1 answer
  • Kenneth is 14 years younger than twice Sabrina’s age. Kenneth is 30 years old. How old is Sabrina?
    10·1 answer
  • What is the solution to the exponential equation 5^2n
    8·1 answer
  • Please help
    10·1 answer
  • Write the following number in scientific notation: .00098
    5·1 answer
  • Solve the simultaneous linear equations by using the elimination method​
    12·1 answer
  • Expand then fully factorise 9(f + 3) +36f - 3)
    8·1 answer
  • Help please <br> 10(5-n)-1=29
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!