Circle concentric with a given circle and double its area
The same question, asked 2 times: 3 May 2023 S1*, 16 May 2023 S1. Every wording below, oldest first.
Try each one first, then open its answer.
Question 1
3 May 2023 S1
127The equation of the concentric circle, with circle C1 having equation x2+y2−6x−4y−12=0 and having double the area of C1, is
Tap an option to check your answer.
Question 2
16 May 2023 S1
130The equation of the circle, concentric with the circle 2x2+2y2−6x+8y+1=0 and double of its area is
Tap an option to check your answer.
