<span>Complementary angles sum up to 90 degrees and supplementary angles sum up to 180 (I remember that because they are alphabetical).
90 - 71.4 = 18.6
180 - 71.4 = 108.6
Therefore, D. is the answer.</span>
70). Answer Letter Choice, (C), 18 pi square units.
Area = pi r^2
D = 12
R = 6
Larger Circle: 36 pi
Find smaller circles, Subtract:
Diameter of larger circle is 12
Radius 6, also diameter of small circles (2)
pi r^2
D = 6
R = 3
pi = 9
2 circles
2 * 9 pi = Letter Choice, (C), 18 pi square inches
71). Answer Letter Choice, (B), 30.79 cm^2
72). Answer: 144
Hope that helps!!!! : )
Answer:
30
Step-by-step explanation:
The distance to Neptune is greater.
It is about 10 to the 3rd power (1,000) times greater.
