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Law Incorporation [45]
3 years ago
8

How is finding the area of a parallelogram like finding the area of two congruent triangles?

Mathematics
1 answer:
madreJ [45]3 years ago
4 0
If you look at either diagonal (line joining opposite angles) it forms 2 triangles that are identical, both in size and shape, but that are in different positions. So by finding the area of one using <u>base x height ÷ 2,</u> and then adding them together, you get the area of the polygon.
However, you will find that that would be the same as just doing <u>base x height</u>, so the area of a parallelogram is just that.
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jenyasd209 [6]

The given values are:

p =  22% = 0.22

Zc = 1.645 at 90% confidence level.

margin of error, E = 0.04

 

The formula we can use here is:

E = sqrt(pq/n) * Zc

 0.04 = sqrt(0.22*(1-0.22)/n)*1.645

n = (0.22*(1-0.22))*(1.645/0.04)^2

n = 290.22

 

hence minimum sample size = 290 

7 0
2 years ago
A recipe calls for 212 cups of flour to make 2 dozen cookies. How many cups of flour would be required to bake 15 dozen cookies.
NikAS [45]

Answer:

18 3/4 cups are required to bake 15 dozen of cookies.

Step-by-step explanation:

x = 75/4

x = 18 3/4 cups

18 3/4 cups are required to bake 15 dozen of cookies.

4 0
3 years ago
54 divided by 2,808 the answer an worked out
NemiM [27]
0.019 is the correct answer. I hope this is the answer you are looking for! :)
4 0
2 years ago
Solve for x 8/x +1/5 = 3/x
HACTEHA [7]

Answer:

I think x=-25

Step-by-step explanation:

8 0
2 years ago
I dont get this at all answer fast plz
Scrat [10]

Answer:

3960 Degrees

Step-by-step explanation:

There is a formula for this!

In this n=24 since there are 24 sides.

The formula is 180(n-2).

Hope this helped and please mark me as Brainliest if possible.

4 0
2 years ago
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