Ok, I have some questions, these are all using radians
Convert the following angles to radians giving your answers correct to 3SF.
a) 20 degrees
b) -72 degrees
c) 400 degrees
d) -140 degrees
e) 760 degrees
An angle "p" subtends an arc of length 25cm in a circle of radius R cm.
The area of the sector POQ is 72cm (squared)
Forumulate two equations in r and "p" Find the values of r and "p"
A cylindrical pipe of diameter 1.5m contains water to a depth of 0.9m.
a) find the cross sectional area of the water
b) if the water is flowing at a rate of 60 litres per second fin dthe speed of the water in m/s
I would really appreciate any help offered, these are the final pieces of some homework and i really need help, thank you