Question

Which transformations will produce similar, but not congruent, figures?

A.
Triangle MNO is reflected across the x-axis and then rotated 90° clockwise to form triangle MꞌꞌNꞌꞌOꞌꞌ.

B.
Triangle MNO is reflected across the x-axis and then translated 9 units down to form triangle MꞌꞌNꞌꞌOꞌꞌ.

C.
Triangle MNO is reflected across the y-axis and then dilated by a scale factor of 1.8 to form triangle MꞌꞌNꞌꞌOꞌꞌ.

D.
Triangle MNO is reflected across the y-axis and then rotated 180° clockwise to form triangle MꞌꞌNꞌꞌOꞌꞌ.

Answer 1

@techygirl

Answer 2

what choices have you ruled out already

Answer 3

B&C

Answer 4

ok sorry but this one im not so sure about

Answer 5

ok thanks

Answer 6

@welshfella

Answer 7

Hint: a translation, reflection or rotation will always give a congruent image

Answer 8

So C

Answer 9

yes - a dilation keeps the same shape but increases the total size