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
melisa1 [442]
3 years ago
9

What are ways using coordinate geometry, that I could determine that this is a trapezoid?

Mathematics
1 answer:
NemiM [27]3 years ago
3 0

One method to see it's a trapezoid is to find the slope of lines BC and AD.

The slope formula is

m = (y2-y1)/(x2-x1)

You should find that BC and AD both have the same slope (of -1), so that means the lines are parallel. That proves we have a trapezoid.

-----------------------

To prove this trapezoid is isosceles, you can use the distance formula

d = \sqrt{ \left(x_1-x_2\right)^2 + \left(y_1-y_2\right)^2}

to find the lengths of AB and CD (the two non-parallel sides). You should find that AB = CD.

Because AB and CD are horizontal and vertical respectively, this means you can simply count out the spaces to find that AB and CD are 3 units each. For any other rotated version of this trapezoid, use the distance formula instead.

You might be interested in
Find the value of x!!
Wewaii [24]

Answer:

x=23°

Step-by-step explanation:

93°+(3x+18)°=180°

93°+3x+18°=180°

111°+3x=180°

3x=180°-111°

3x=69°

x=69°:3

x=23°

3 0
3 years ago
Read 2 more answers
Jackson was selling cups of lemonade for a school football fundraiser. On Saturday, he sold a total of 26 cups.
marin [14]

Answer:

how much did he sell them for

because what ever it it just do 26x__

7 0
2 years ago
A number with 2 decimal places, that is bigger than 4 1/5 but smaller than 4.25
LUCKY_DIMON [66]

Answer:

4.21, 4.22, 4.23,

4.24 (choose any one)

Step-by-step explanation:

since 4 1/5 is 4.20, so the numbers in between 4.20 and 4.25 are 4.21, 4.22, 4.23,

4.24 (choose any one)

3 0
2 years ago
Sketch the graph of = 3 on the axes below:
Aneli [31]

The graph should look the the one I attached to this answer

7 0
2 years ago
What is the distance between point A and point B?
Tpy6a [65]

Answer:

\sqrt{45}

Step-by-step explanation:

(5,9) and (2,3)

then by distance formula

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

d²=3²+6²

d²=9+36

d²=45

d =  \sqrt{45 }

8 0
2 years ago
Other questions:
  • Plzzzzzz help meee!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
    11·1 answer
  • Please help<br> Write 0.16 as a fraction. <br> A) 1/12 <br> B) 1/3 <br> C) 1/6 <br> D) 1/9
    6·2 answers
  • a chemistry lab, you have 2 vinegars. One is 5% acetic acid, and the other one is 6% acetic acid. You want to make 200 ml of vin
    13·1 answer
  • Help meeeeeeeeeeplease
    10·2 answers
  • Solve the system using any method.<br> y=3.50-2<br> y=-1.9x+4.48<br> The system has no solution, ().
    14·1 answer
  • A regulation-size women's basketball has a diameter of 9.07 inches. What is the surface area of the basketball? Use 3.14 for π a
    7·1 answer
  • A sporting goods store wants to display 64 sneakers in rows.Each row must contain the same amount of sneakers. Which arrangement
    10·1 answer
  • Stock splits will not..
    7·1 answer
  • Hank ordered 58 t-shirts. He organized the t-shirts into 3 boxes. If he wanted each box to have about the same number of t-shirt
    6·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Csqrt%5B3%5D%7B28%7D%20" id="TexFormula1" title=" \sqrt[3]{28} " alt=" \sqrt[3]{28} " ali
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!