如下圖，梯形ABCD之對角線AC、BD交於點M，AB//CD，∠=AB

如下圖，梯形ABCD之對角線AC、BD交於點M，AB//CD，∠=ABC90°。已知梯形ABCD有一半徑為5的內切圓，則△ADM的面積為 。

ผลลัพธ์ (อังกฤษ) 1:

The following figure, trapezoid ABCD diagonals AC and BD intersect at point M,AB//CD, indicates that the =ABC90 °. Trapezium ABCD has an inscribed circle of RADIUS 5 known, ADM area.

ผลลัพธ์ (อังกฤษ) 2:

As shown, the diagonal trapezoid ABCD of AC, BD intersect at point M, AB / / CD, ∠ = ABC90 °. Known trapezoid ABCD has an inscribed circle of radius 5, the area of ​​△ ADM.

ผลลัพธ์ (อังกฤษ) 3:

The following chart, diagonal line AC and BD trapezoid ABCD hand over in M, AB//CD,∠=ABC90°. Known trapezoid ABCD has a radius is 5 inscribed circles, then the △adm area is.