Answer:
53.3 rotations
Step-by-step explanation:
135/180=x/40
solve by cross multiply
Answer:
2x – 4 – 1 + x
Step-by-step explanation:
Answer:
Use trig ratios to find unknown sides in right triangles.
Step-by-step explanation:
Answer:
Step-by-step explanation:
Connecting any point of original figure with the same of the image
For example point C with C'
The line goes through the origin (0, 0)
<u>And the coordinates changed as:</u>
It means the rotation is 180°
Essentially, what we need to do here is prove that BE=EC, BE=CB, and.or CE=BC therefore making it isosceles. With ∠AEC=∠DEB, we know AE=DE, so EC=EB (the points go in order). Therefore, as EC=EB, BEC is isosceles (it has at least 2 equal sides).
Feel free to ask further questions!
