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
solmaris [256]
4 years ago
15

A window in the shape of a parallelogram has the dimensions given.

Mathematics
2 answers:
mariarad [96]4 years ago
8 0
<h3>Answer: 20 square feet (choice A)</h3>

The base is AB = 5 ft because AB = CD. Recall that opposite sides in a parallelogram are congruent and parallel.

The height is DE = 4 ft

Area of a parallelogram is base times height. It's effectively the same formula as a rectangle (any rectangle is a parallelogram, but not the other way around).

So,

area of parallelogram = base * height = 5*4 = 20

note: the base is always perpendicular to the height

another thing to point out: the info AE = 2 ft isn't used at all. It's probably put in there to distract or to make students try to find AD using the pythagorean theorem. Knowing the length of AD will not help find the area of the parallelogram. Though now that I think about it, you could divide this parallelogram into a rectangle and two triangles. Then find the area of each small piece to add them up to get the final answer. I show what I mean in the attached image below. However, it's much easier to use the formula area = base*height.

Phoenix [80]4 years ago
4 0

Answer:

Actually, it's 20.

Step-by-step explanation:

I took the test online in K12 and when I reviewed it said that 20 is the correct answer. Have a nice day :)

You might be interested in
Item 15 Question 1 Show that quadrilateral WXYZ with vertices W(−1,6), X(2, 8), Y(1, 0), and Z(−2,−2) is a parallelogram by find
Aliun [14]

Answer:

Multiple answers

Step-by-step explanation:

A parallelogram is a flat shape that has four sides. The two sets of opposite sides are parallel and of equal length to each other.

To prove that our figure is a parallelogram we first get the slope of our sides.

The formule we use to get the slope is:

m = \frac{y-y1}{x-x1}

  1. first we have the W-Z side that it's supossed to be parallel to X-Y side

if we use our formule to calculate the slope of W-Z:

\frac{6-(-2)}{-1-(-2)}  =  \frac{8}{1}  =  8

if we use our formule to calculate the slope of X-Y:

\frac{8-0}{2-1}  =  \frac{8}{1}  =  8

  • We know that parallel lines will never intersect because they have the same slope, therefore W-Z side is parallel to X-Y side

2. Then we have the W-X side that it's supossed to be parallel to Z-Y side

if we use our formule to calculate the slope of W-X:

\frac{6-8}{-1-2}  =  \frac{-2}{-3}  

if we use our formule to calculate the slope of Z-Y:

\frac{-2-0}{-2-1}  =  \frac{-2}{-3}  

  • We know that parallel lines will never intersect because they have the same slope, therefore W-X side is parallel to Z-Y side

Then we have to prove that the parallalel sides are equal length to each other.

The formule we use to get the distance between two points is:

\sqrt{(x2-x1)^{2}+(y2-y1)^{2}  }

We calculate the lenght of the W-Z side that it's supossed to be equal to X-Y side:

W-Z = \sqrt{(-1-(-2))^{2}+(6-(-2))^{2}  } =   \sqrt{65}

X-Y = \sqrt{(2-1)^{2}+(8-0)^{2}  } = \sqrt{65}

So the W-Z side have the same lenght to X-Y side.

We calculate the lenght of the W-X side that it's supossed to be equal to Z-Y side:

W-X = \sqrt{(-1-2)^{2}+(6-8)^{2}  } =   \sqrt{13}

Z-Y = \sqrt{(-2-1)^{2}+(-2-0)^{2}  } = \sqrt{13}

So the W-X side have the same lenght to Z-Y side.

6 0
3 years ago
HELP PLSSS!!! NO LINKS!!!
yawa3891 [41]

Answer:

50% chance of harriet picking a blue marbel I hope that this is the answer you wanted

3 0
3 years ago
Please help!!!!!!
nevsk [136]

Answer:

(34-4)/2

Step-by-step explanation:

First you would subtract the flat fee of 4 dollars from the total ($34) which would give you 30 then you divide 30 by the rate or dollars per mile (2) which would leave you with 15 so he drove 15 miles and if you were to writ this as an equation (as shown above) it would look like this (34-4)/2 where you first subtract (hence the parentheses) then you would divide (hence the / ). I hope you found this helpful :D  

5 0
4 years ago
Please help solve this
kolezko [41]

Answer:

the asnwer is c

Step-by-step explanation:

6 0
3 years ago
Write the slope intercept form of the equation of each line.
larisa86 [58]

Answer:

The answer is y=(-2x)-5

8 0
3 years ago
Other questions:
  • What is 1.5 m - 5 cm ?
    11·1 answer
  • A convex pentagon has the following measurements for its interior angles: (x-8), (3x-11), (x+8), (x), and (2x+7). Which of the f
    11·1 answer
  • Estimate 2,244,000 to the nearest ten thousand
    9·2 answers
  • At the bank, Derek made 7 withdrawals, each in the same amount. His brother, John, made 5 withdrawals,
    10·1 answer
  • A bag contains 3 red, 6 blue, 5 purple, and 2 orange marbles. One marble is selected at random. What is the probability that the
    8·2 answers
  • Find the area of the parallelogram
    8·2 answers
  • Classify the following triangle check all that apply​
    6·1 answer
  • Plz Help!!!<br> Will give Brainliest!!!
    11·1 answer
  • <img src="https://tex.z-dn.net/?f=%5Cfrac15%20%284%20-%203x%29%20%3D%5Cfrac15%20%283x%20-%204%29" id="TexFormula1" title="\frac1
    9·2 answers
  • Water is being pumped into a conical tank that is 8 feet tall and has a diameter of 10 feet. If the water is being pumped in at
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!