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List the ordered pairs for the vertices in counterclockwise order, repeating the first ordered pair at the bottom of the list.
Find D, the sum of the downward diagonal products (from left to right.)
Find U, the sum of the upward diagonal products (from left to right.)
Use the formula A=1/2(D-U) to find the area.
This works for any closed polygon.
Example: Consider the trapezoid bounded by the points, (0, 0), (1, 2), (4, 2), and (4, 0). Write the list:
(0, 0)
(4, 0)
(4, 2)
(1, 2)
(0, 0)
Find D = 0*0 + 4*2 + 4*2 + 1*0 = 16
Find U = 4*0 + 4*0 + 1*2 + 0*2 = 2
Find A = 1/2 (D-U) = 1/2(16-2) = 1/2(14) = 7sq units
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How do you find the area of a trapezoid using the area of a triangle?
You have to cut the trapezoid into three shapes. The three shapes will be two triangles and one rectangle or square. You have to find the area of these three shapes and then add all of the three areas up to find the area of the trapezoid.
What is the area of a trapezoid with base of 4Cm and 28Cm?
The height of the trapezoid is also needed to find its area which is as follows:- Area of a trapezoid = 0.5*(sum of bases or parallel sides)*height
How you could find the height of a trapezoid if you knew the length of the 2 bases and the area of the trapezoid?
Height of trapezoid = 2*area/sum of parallel sides
What is the formula to find volume of a trapezoid?
The trapezoid is a plane figure which has surface Area, but no volume but if there was a 3d figure your equation would be. The Surface Area of a trapezoid = ½(b1+b2) x h X Height of figure.
Find area of trapezoid?
Area = 1/2*(sum of parallel sides)*height
How do you find the area of a trapezoid using the area of a triangle?
You have to cut the trapezoid into three shapes. The three shapes will be two triangles and one rectangle or square. You have to find the area of these three shapes and then add all of the three areas up to find the area of the trapezoid.
Find the area of this trapezoid.?
what trapezoid
How can coordinates help you to find the area of figures on the coordinate plane?
Once you know the coordinates, you can use the distance formula to find the lengths of the sides, then using that, you can find the area.
How do you find an area of trapezoid?
Area of a trapezoid: 0.5*(sum of its parallel sides)*height
How do you find the area for the trapezoid?
BASExHIEGHT=AREA
A trapezoid is shown on the grid. Which expression can be used to find the area of the trapezoid?
answer
What is the formula to find the area of a trapezoid areab1b2?
Area of a trapezoid = 0.5*(sum of parallel sides)*height
How do you find the height of a trapezoid using the area and two bases?
The height can be found by dividing the area by the sum of the bases and multiplying the result by 2
What is the area of a trapezoid with base of 4Cm and 28Cm?
The height of the trapezoid is also needed to find its area which is as follows:- Area of a trapezoid = 0.5*(sum of bases or parallel sides)*height
How do you measure area of trapezoid?
To measure the area of a trapezoid, you can use the formula: Area = (1/2) * (sum of the lengths of the parallel sides) * (height). Simply add the lengths of the two parallel sides together, multiply by the height, and then divide by 2 to find the area of the trapezoid.
How do you find area of a trapezoid?
Area of a trapezoid: 0.5*(sum of parallel sides)*height
Find the area of this trapezoid All length measures are in centimeters?
The area of a trapezoid is equal to the height, multiplied by the average of the two widths.
