It is known that ad of trapezoid ABCD is 5cm, BC is 8cm, BC side length is a little e, AE is 4cm, De is 3cm Find the area of triangle Abe, Dec shadow

It is known that ad of trapezoid ABCD is 5cm, BC is 8cm, BC side length is a little e, AE is 4cm, De is 3cm Find the area of triangle Abe, Dec shadow

According to the Pythagorean theorem, ade is a right triangle, then the height of the trapezoid is 12 / 5, and the total area of the trapezoid is 78 / 5. After subtracting the area of ADE 6, the total area of the remaining two triangles is 48 / 5

In the figure, the bottom of the trapezoid is 17.5cm, the height is 5cm, and the two bottom angles are 45 degrees

17.5-5 × 2 = 7.5 (CM), (7.5 + 17.5) × 5 △ 2, = 25 × 5 △ 2, = 62.5 (square cm); answer: the area of trapezoid is 62.5 square cm

The area of a trapezoid is 60 square centimeters, the upper bottom is 9.2 centimeters, and the lower bottom is 5.8 centimeters. What is the height of this trapezoid______ Cm

60 × 2 ^ (9.2 + 5.8), = 120 ^ 15, = 8 (CM); answer: the height of this trapezoid is 8 cm