math
posted by Ele on .
Find the area of the partial circle, use 22/7 for pi.
1.) radius = 27 cm
find the area of 1/5 of the circle
2.) diameter = 29 ft
find the area of 1/3 of the circle.
Help!! Please!! Thanks!! :D

1.)
A = [(22/7) * 27^2] / 5
2.)
A = [(22/7) * 14.5^2] / 3 
The diameter of the first circle is x cm. If the diameter of the second circle is 1/4 x cm .Then , what is the radius of the second circle?