376,995 views
32 votes
32 votes
PLEASE HELP!!! 100 POINTS!!

PLEASE HELP!!! 100 POINTS!!-example-1
User Mhd
by
2.8k points

2 Answers

25 votes
25 votes

Answer:

1) Translate the circle V(x + 9, y + 8)

2) Dilate circle V by a scale factor of 4

User LPodolski
by
2.9k points
13 votes
13 votes

Answer:

Translate circle V (x+9, y+8)

Dilate circle V by a scale factor of 4

Explanation:

To prove that two circles are similar:

  1. Center the smaller circle on the larger circle so that the two circles share a center point.
  2. Identify the scale factor of dilation needed to increase the smaller circle to the size of the larger circle by dividing the radius of the larger circle by that of the smaller circle.

From inspection of the given diagram:

  • Center of Circle V = (-8, -6)
  • Center of Circle V' = (1, 2)

Therefore, to translate Circle V to Circle V', shift Circle V 9 units right and 8 units up → (x+9, y+8).

From inspection of the given diagram

  • Radius of Circle V = 2 units
  • Radius of Circle V' = 8 units

Therefore, the scale factor of dilation is:


\sf \implies scale\:factor=(8)/(2)=4

Since we have used translation and dilation to map Circle V to Circle V', we can conclude that Circle V and Circle V' are similar.

User Ersen Osman
by
3.3k points