Question

a part of the geometric construction for drawing a perpendicular to line n at point a is shown. which next step can be used to complete the construction? join point y and point z join point x and point z join point a and point z join point x and point a

Explanation:

在几何作图中，要过直线 \(n\) 上一点 \(A\) 作直线的垂线，通常先以 \(A\) 为圆心画弧交直线 \(n\) 于 \(X\)、\(Y\) 两点，再分别以 \(X\)、\(Y\) 为圆心，适当长度为半径画弧，两弧交于点 \(Z\)，最后连接 \(Z\) 与 \(A\) 点所得到的直线就是过 \(A\) 点垂直于直线 \(n\) 的直线。

Answer:

C. join Point \(A\) and Point \(Z\)