Triangle RST was transformed using the rule (x, y) → (–x, –y). The vertices of the triangles are shown. R (1, 1) S (3, 1) T (1,

Question

3 years ago

5

Triangle RST was transformed using the rule (x, y) → (–x, –y). The vertices of the triangles are shown. R (1, 1) S (3, 1) T (1,

6) R' (–1, –1) S' (–3, –1) T' (–1, –6) Which best describes the transformation? The transformation was a 90° rotation about the origin. The transformation was a 180° rotation about the origin. The transformation was a 270° rotation about the origin. The transformation was a 360° rotation about the origin.

Mathematics

2 answers:

Feliz [49] · Answer 1 · 2022-04-24T03:27:14+03:00

Feliz [49]3 years ago

8 0

The transformation was a 180° rotation about the origin.
Because, if we take formulas of rotation about the origin:
X1=x*cos£+y*sin£.
Y1=-x*sin£+y*cis£.
And £=180°
Than we recieve
x1=-x
y1=-y

Snowcat [4.5K] · Answer 2 · 2022-04-24T04:58:48+03:00

Snowcat [4.5K]3 years ago

5 0

Answer:

B

Step-by-step explanation: