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gayaneshka [121]
3 years ago
13

How do you find the area of a polygon in a coordinate plane

Mathematics
1 answer:
inna [77]3 years ago
6 0

Step-by-step explanation:

The way that I would do it, would be to use the point distance formula to find the length of each side.

Distance formula: \sqrt{(x2-x1)^{2} (y2-y1) ^{2} }

After you use this formula to find the length of all sides of the polygon, you would need to use the appropriate area formula to find the area of the polygon.

Area of Triangle: A= 1/2 base times height

Area of Rectangle: A= length times width

Area of Square: A= s^2 where s is the length of the side

Area of Parallelogram: A= base times height

Area of Trapezoid: A= 1/2 times height (base 1 + base 2) where base 1 and base 2 are the parallel sides

Area of Kite or Rhombus: A= 1/2 (diagonal 1 times diagonal 2)

Area of Regular Polygons: A= 1/2 (apothem times perimeter)

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Please help and thanks!
Leokris [45]

Answer:    D: 17.3

Step-by-step explanation:

I believe its D because the house and the ground is a 90 degree angle, and at 60 degree angle is a 20 foot ladder. alright then 90 plus 60 = 150 degrees.

then add the twenty foot ladder with each choice for the answer:

A: 20 + 6.1 = 26.1

B: 20 + 10.0 = 30

C: 20 + 14.1 = 34.1

D: 20 + 17.3 = 37.3

The answer would be D because it is the closer number to 150. Because it says " which is the closest height up the house the ladder reaches?" The answer is D the closest number. I HOPE THIS HELPS YOU! =D

4 0
3 years ago
a discounted concert ticket costs $14.50 less than the original price p.You pay $53 for a discounted ticket.Write an equation th
Ahat [919]

Answer:

$53.00 + $14.50

= 67.50

Make sure to leave a good review if it helped you

-Adan


7 0
3 years ago
Can you help me please ​
Readme [11.4K]

The area of the sector which is the white triangle adding the shaded region is 68.9/360*π*9.28^2=51.78005(rounding to 5th digit after decimal point for accuracy before we do final round for answer)

The area of the white triangle in the sector has area 1/2*9.28^2*sin(68.9)= 40.17223(rounding to 5 digits again for some accuracy.

Now we take out the white triangle from the sector.

51.78005-40.17223=11.60782

rounding to the nearest tenth we get 11.6 cm^2

Problem done!

Hope this helped and if you have any questions about my explanation just ask in the comment and I will answer.

5 0
3 years ago
9. Order the angles of the triangle from smallest to largest
12345 [234]

Answer:

It is b. ACB

Step-by-step explanation:

If draw a triangle, you would give the longest side to BC, because their angles equal 10

And you would give AC the shortest side of the triagle because their angles equal 7

And AB the last side because it is in between the other sides

Since AC have the smallest angle, they would have the smaller numbers

then that leaves B as the biggist number

8 0
3 years ago
Find the distance between the points with the given coordinates.√ (copy and paste the radical if necessary, no decimals)
Yakvenalex [24]

Answer:

d=\sqrt{593}

Step-by-step explanation:

<u>Distance Between two Points in the Plane</u>

Given two points A(x,y) and B(w,z), the distance between them is:

d=\sqrt{(z-y)^2+(w-x)^2}

We are given the points (5, 14) and (−3, −9). Substituting into the formula:

d=\sqrt{(-9-14)^2+(-3-5)^2}

d=\sqrt{(-23)^2+(-8)^2}

d=\sqrt{529+64}

\boxed{d=\sqrt{593}}

5 0
3 years ago
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