P = 2*(L + W) = 2*(51.125 +38.25)
P = 178.75 . . . ft . . . . . selection A
We assume that the problem above involves right triangles, wherein the diameter of the moon would be the height and the distance from Earth would be the base. By finding the desired angle, we used the tangent function:
tan (theta) = 2160 / 238860
theta = tan -1 *( 2160 / 238860) = 0.516 degrees
Therefore the angle in the eye of the beholder would be half a degree.
Convert 55% to a decimal by moving the decimal point two places to the left:
55% = 0.55
Now multiply:
3650.00 x 0.55 = 2,007.50
9514 1404 393
Answer:
- 113.04, 4, 452.16
- 78.5, 11, 863.5
- 153.86, 10, 1538.6
Step-by-step explanation:
When calculations are repetitive, I like to let a calculator or spreadsheet do them. Here we have used the formula for the base area:
B = πr² = 3.14×r²
In the second figure, the radius is half the diameter, so is 5 units.
The table in the attachment lists the base area B, the height h (from the figures), and the volume V. These are the values that you need to drag and drop to the boxes in your problem.
V = 113.04 · 4
V = 452.16 units³ . . . showing how the numbers are used in the first figure