Answer:
Area of circle A = 1133.54 square feet
Circumference of circle A = 119.32 feet
Step-by-step explanation:
d = diameter of circle A
D = diameter of circle B
For circle A
r = 2D - 3
Therefore, the diameter of circle A is 2* the r
d = 2 * ( 2D - 3)
d = 4D - 6
and
d + D = 49
slot in the value of d
4D - 6 + D = 49
4D + D = 49 + 6
5D = 55
Divide both sides by 5
D = 11
Slot in the value of D in d = 4D - 6
d = 4*11 - 6
d = 44 - 6
d = 38
Area of circle A = πd^2 / 4
= 3.14 * 38^2 / 4
1133.54 square feet
Circumference of circle A = πd
= 3.14* 38
= 119.32 feet
