There is a trapezoid whose bottom is three times as high as the top, and its height is 10 cm. If you add 6 cm to the top and subtract 4 cm from the bottom, it will become a rectangle. How about the area of the trapezoid? There should be a formula

There is a trapezoid whose bottom is three times as high as the top, and its height is 10 cm. If you add 6 cm to the top and subtract 4 cm from the bottom, it will become a rectangle. How about the area of the trapezoid? There should be a formula

Let X be 3x
Because x plus 6 = 3x-4
So x = 5
So the upper bottom = 5 and the lower bottom = 15
So s trapezoid = (5 + 15) * 10 * 0.5 = 100

There is a trapezoid, the upper bottom is four times the lower bottom, the height is 8 cm, if the upper bottom minus 6 cm, the lower bottom increased by 6 cm, it will become a rectangle, trapezoid area

There are more bottoms than bottoms
6 + 6 = 12 cm
The bottom is
12 (4-1) = 4cm
The top and bottom are
4 × 4 = 16 cm
What is the trapezoidal area
(16 + 4) × 8 △ 2 = 80 square centimeter

There is a trapezoid, the upper bottom is three times the lower bottom, and the height is 10 cm. If you subtract 4 cm from the upper bottom and add 10 cm to the lower bottom, it will become a rectangle. Find the original trapezoid

The top of the trapezoid is more than the bottom
10 + 4 = 14 (CM)
The bottom of the trapezoid is
14 (3-1) = 7 (CM)
The top and bottom of the trapezoid are
7 × 3 = 21 (CM)
What is the area of the trapezoid
(21 + 7) × 10 △ 2 = 140 (cm2)