thank you kind person. Here have a picture for you to dream at night :)
- - Solve:
To find the volume of a sphere:
![\frac{4}{3} *3.14*R^3](https://tex.z-dn.net/?f=%20%5Cfrac%7B4%7D%7B3%7D%20%2A3.14%2AR%5E3)
3.14≈π
Now since its telling us to use π, then we do our formula by multiplying by π.
π=3.14 (Approximate amount)
So:
![4/3*3.14*9^3=3052.08](https://tex.z-dn.net/?f=4%2F3%2A3.14%2A9%5E3%3D3052.08)
So you are correct.
When Radius=9, you plug in for R. :)
You need to show us the circle in order to let us answer the question.
Answer:
m∠ADC = 132°
Step-by-step explanation:
From the figure attached,
By applying sine rule in ΔABD,
![\frac{\text{sin}(\angle ABD)}{\text{AD}}=\frac{\text{sin}(\angle ADB)}{AB}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7Bsin%7D%28%5Cangle%20ABD%29%7D%7B%5Ctext%7BAD%7D%7D%3D%5Cfrac%7B%5Ctext%7Bsin%7D%28%5Cangle%20ADB%29%7D%7BAB%7D)
![\frac{\text{sin}(120)}{35}=\frac{\text{sin}(\angle ADB)}{30}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Ctext%7Bsin%7D%28120%29%7D%7B35%7D%3D%5Cfrac%7B%5Ctext%7Bsin%7D%28%5Cangle%20ADB%29%7D%7B30%7D)
sin(∠ADB) = ![\frac{30\text{sin}(120)}{35}](https://tex.z-dn.net/?f=%5Cfrac%7B30%5Ctext%7Bsin%7D%28120%29%7D%7B35%7D)
= 0.74231
m∠ADB = ![\text{sin}^{-1}(0.74231)](https://tex.z-dn.net/?f=%5Ctext%7Bsin%7D%5E%7B-1%7D%280.74231%29)
= 47.92°
≈ 48°
m∠ADC + m∠ADB = 180° [Linear pair of angles]
m∠ADC + 48° = 180°
m∠ADC = 180° - 48°
m∠ADC = 132°
Answer:
36 π square feet
Step-by-step explanation:
so the formula for area of a circle is πr^2
so the radius is 6, which we can just plug in
π(6)^2
36π
so option 3