Answer:
Its right
Step-by-step explanation:
Area of a circle is PI x r^2, where r is the radius ( half the diameter).
Set up the equation to solve for r:
40 = PI x r^2
r^2 = 40/PI
r = SQRT(40/PI)
r = sqrt(40/3.14)
r = sqrt(12.74)
r = 3.57
Diameter = 2 x 3.57
Diameter = 7.14 feet.
Answer:
50
Step-by-step explanation:
All angles around a circle is 360°
/_ 2 = 130°
/_ 1 = 130° (Vertically opposite angles)
= 130° + 130° = 260°
all angles = 360°
= 360° - 260° = 100°
= 100° ÷ 2
= 50°
= /_ 3 and /_ 4 = 50°
Verification = 130° + 130° + 50° + 50° = 360°
Answer:
center:-2,3
Radius:10
Step-by-step explanation:Happy to help :)