Question

Figure RST is reflected about the y-axis to obtain figure R’S’T’:

Answer 1

Answer:

The correct option is B.

Step-by-step explanation:

It is given that the figure RST is reflected about the y-axis to obtain figure R’S’T’.

Reflection is a rigid transformation. It means after reflection the shape and size of the figure is remains the same and both image and preimage are congruent.

$\triangle RST\cong \triangle R'S'T'$

Therefore option A is incorrect.

The corresponding angles and sides of congruent triangles are same.

$\angle R=\angle R'$

Therefore options C and D are incorrect.

Congruent triangles are also the similar triangle with scale factor 1.

$\triangle RST\sim \triangle R'S'T'$

Therefore the figure RST is similar to figure R’S’T’ and option B is correct.

Answer 2

The answer is b both shapes are similar.<span />