Question

A 45° – 45° – 90° set-square has ______ line/lines of symmetry.

Answer 1

A 45° – 45° – 90° set-square has one line/lines of symmetry.

Explanation:

Since, a 45° – 45° – 90° set square has a shape of isosceles triangle and an isosceles triangle has one line of symmetry.