Estimate the circumference of the circle to the nearest hundredth. Use π = 3.14.
17.27 cm
5.5 cm
33 cm
34.54 cm
It is 11 cm
pi R^2 = pi D^2/4 = pi * 49/4 = 38.47 = 38.5
Perhaps you could tell me the radius or the diameter?
if the radius is 11, C = 2 pi r = 22 pi = 69.08
if the diameter is 11 C = pi d = 11 pi = 34.54
11 cm, that is what I meant, sorry
Thanks, anonymous
could you help me with this one too please,
A circular clock face has a diameter of 7 inches. What is the area of the clock face? Round to the nearest tenth.
153.9 in.2
38.5 in.2
49 in.2
11 in.2