I agree with you because theta could be acute or obtuse, and if obtuse, negative value.
Answer: 120 cm
Step-by-step explanation:
V = a^2 h/3
The radius is always half of the diameter so it would be 20 inches
If the average of x and y is 11 and the average of x, y and z is 5, then the value of z is -7
Given,
The average of x and y = 11
We know average = Sum of the terms / Number of terms
Then, the equation will become

x+y =11×2
x+y =22
Average of x, y and z = 5

x+y+z = 5×3
x+y+z =15
Substitute the value of x+y
22+z=15
z =15-22
x = -7
Hence, If the average of x and y is 11 and the average of x, y and z is 5, then the value of z is -7
Learn more about average here
brainly.com/question/12984400
#SPJ4
Answer:
V≈226.19cm³
Step-by-step explanation: