Question

a traffic sign indicating a no passing zone is shaped like an isosceles triangle. does the sign have line symmetry, point symmetry, both, or neither? to answer the question, ignore the words no passing zone and just focus on the shape of the sign.

Explanation:

Step1: Recall line symmetry

A figure has line symmetry if a line can be drawn such that one half is the mirror image of the other. For an isosceles triangle, there is a vertical line (axis) that divides it into two congruent halves.

Step2: Recall point symmetry

A figure has point symmetry if rotating it \(180^\circ\) about a point maps it onto itself. An isosceles triangle (not equilateral) does not have point symmetry because rotating it \(180^\circ\) will not map it to itself.

Answer:

The sign (isosceles triangle) has line symmetry.