Given the lengths of the two sides of a right-angled triangle， we can find out the length of a third side.
Given the lengths of the two sides of a right-angled triangle， we can find out the length of a third side.
要是知道直角三角形两个边的长度，我们就能求出第三边的长度。
Given the lengths of the two sides of a right-angled triangle， we can find out the length of a third side.
要是知道直角三角形两个边的长度，我们就能求出第三边的长度。