Given the lengths of the two sides of a right-angled triangle, we can find out the length of a third side.

如果晓得直角三角形两个边的长度，咱们就能求出第三边的长度。

youdao

Out-leg: measure from the center of the side waist to the outer ankle, and adjust the measurement to the desired length when drafting, e. g. trousers length is sometimes called "outseam".

外长： 量度从侧腰中位到外裸处的长度，。可根据起样所需的长度调节尺寸，例如：裤子的长度有时称“外缝长”。

youdao

On the other side, full-length green-paned windows span the length of the corridor and look out to the courtyard.

在另一边，完整的绿色玻璃窗沿着走廊一直延伸，通向院子。

youdao

They held the home side at arm's length and could then have taken the lead when they twice caught out Real's defence with two long balls forward.

BBC: Real Madrid 0-1 Liverpool