The lower part of a trapezoid is three times the upper part. The upper part is extended by eight centimeters to form a parallelogram with an area of 288 square centimeters. The area of the original trapezoid is calculated

The lower part of a trapezoid is three times the upper part. The upper part is extended by eight centimeters to form a parallelogram with an area of 288 square centimeters. The area of the original trapezoid is calculated

8 ÷ (3-1) = 4 (CM) Trapezoidal top bottom
4 * 3 = 12 (CM)
288 △ 12 = 24 (CM) high
(4 + 12) * 24 △ 2 = 192 (cm2) Trapezoidal area