Question

Which transformations map the strip pattem onto itself? (I'll send pic of problem)1) a horizontal translation only 2)a horizontal translation, a reflection across a vertical line, a reflection across a horizontal line, a glide reflection, and a 180 rotation3) a horizontal translation and a 180° rotation only4) a horizontal translation, a reflection across a horizontal line, and a glide reflection only

Answer 1

Notice that the strip has the first triangle translated horizontally, and then rotated 180°, then the second triangle is translated horizontally again and given another rotation of 180°, therefore, the correct option is 3