A right angle trapezoid is 8cm high. If you shorten its bottom to a little, you will get an isosceles right triangle. The area of the original trapezoid is one fourth of that of the original trapezoid. The area of the original trapezoid is () square centimeter

A right angle trapezoid is 8cm high. If you shorten its bottom to a little, you will get an isosceles right triangle. The area of the original trapezoid is one fourth of that of the original trapezoid. The area of the original trapezoid is () square centimeter

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A right trapezoid is 8cm high. If its bottom is shortened to a point, an isosceles right triangle will be obtained. The area becomes 1 / 4 of the original trapezoid, and the area of the original trapezoid is () cm2

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The height is a right angle trapezoid of 8 cm, and the upper bottom is 1.2 times of the lower bottom. If the upper bottom is shortened by 3 cm, a rectangle will be formed, and the area of this trapezoid will be calculated

If the bottom is x cm, the upper bottom is 1.2x cm, and the upper bottom is shortened by 3 cm to form a rectangle, then the upper bottom is 3 cm longer than the lower bottom, so the equation 1.2x-x = 3 can be formulated, and the solution is x = 15 cm, so the upper bottom is 15 + 3 = 18 cm, and the area is (15 + 18) × 8 △ 2 = 132 square cm