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3 years ago

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

1 answer:

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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it's believed that as many as 2222% of adults over 50 never graduated from high school. we wish to see if this percentage is t

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