The area of a polygon equals
area = circumradius² * number of sides * sin (360 / # of sides) / 2
area = 77² * 20 * sin (360 / 20) / 2
area = 77² * 20 * sin (18) / 2
area = 118,580 * 0.30902 / 2
area =
<span>
<span>
<span>
36,643.59
</span>
</span>
</span>
/ 2
area =
18,321.8 square millimeters
Answer:D 2 1/7
Step-by-step explanation: you can put 7 into 15 two times and that gives you 2 holes and you then have 1/7 leftover therefore you have 2 1/7.
Answer:
The value of the mean reflects both the number and the value of cases. is false
Step-by-step explanation:
Answer:
The correct option is;
Yes, his calculations are correct and the volumes for figures are equal
Step-by-step explanation:
The volume, V, of a square (of side s) pyramid of height h = ![\frac{1}{3} \times s^2 \times h](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B3%7D%20%5Ctimes%20s%5E2%20%5Ctimes%20h)
Where:
s = 9.7 inches
h = 9 inches
We have;
![V = \frac{1}{3} \times 9.7^2 \times 9 = \frac{1}{3} \times 94.09 \times 9 = \frac{1}{3} \times 846.81 = 282.27 \approx 282 \ in^3](https://tex.z-dn.net/?f=V%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%5Ctimes%209.7%5E2%20%5Ctimes%209%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%5Ctimes%2094.09%20%5Ctimes%209%20%3D%20%5Cfrac%7B1%7D%7B3%7D%20%5Ctimes%20846.81%20%3D%20282.27%20%5Capprox%20282%20%5C%20in%5E3)
The volume,
, of a cylinder of radius r = Base area × Height, h = (π×r²)×h
Where:
Base area = π×r²
r = Radius of the cylinder = 5.47 inches
h = Height of the cylinder = 3 inches
= π × 5.47² × 3 = π × 29.9209 × 3 = π × 89.7627 = 281.998 ≈ 282 m³
Therefore, Jude is correct.
Answer:
x = 8 base angle = 81 degrees
Step-by-step explanation: