The coterminal angle for the -4π/5 are -14π/5 , 6π/5 and reference angle is π/5 respectively.
<h3>What is coterminal angles?</h3>
Two different angles that have the identical starting and ending edges termed coterminal angles however, since one angle measured clockwise and the other determined counterclockwise, the angles' terminal sides have completed distinct entire rotations.
We have an angle:
-4π/5
To find the coterminal angle, add and subtract by 2π in the angle -4π/5
Coterminal angle:
= -4π/5 - 2π
= -14π/5
= -4π/5 + 2π
= 6π/5
Reference angle:
= π - 4π/5 (as the angle lies in the second quadrant)
= π/5
Thus, the coterminal angle for the -4π/5 are -14π/5 , 6π/5 and reference angle is π/5 respectively.
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Answer is something I’m not sure of
The height of the cone, to the nearest whole number is: 6 inches.
<h3>What is the Volume of a Cone?</h3>
Volume of cone = 1/3(πr²h)
r is radius and h is the height of the cone.
Given:
Volume of cone = 66 in.³
Diameter = 6.5 in.
Radius (r) = 6.5/2 = 3.25 in.
Height (h) = ?
Plug in the values
66 = 1/3(π)(3.25²)(h)
66 = 11.1h
66/11.1 = h
h = 6 in.
Therefore, the height of the cone, to the nearest whole number is: 6 inches.
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Answer: i think it is 2/7
Step-by-step explanation:
