Question

IS anyone up to really help me out? I got 8 questions right out of 20 and need serious help...anyone up for it?

Answer 1

sure

Answer 2

okay my first one is In circle O, m<R = 23. Find m<O. (The figure is not drawn to scale.)
A) 46 B) 23 D) 157

Answer 3

R is an "inscribed angle" (it is on the circle)
O is a central angle

R's arc is QN
O's arc is also QN

for the same arc, central angles are twice as big as the inscribed angle

Answer 4

You should memorize that factoid.

Answer 5

@phi very interesting fact.

Answer 6

So even if the point R moved, then it would always be twice the angle?

Answer 7

yes R would always be 1/2 of O, as long as R's arc stays QN

Answer 8

Can you figure out what m angle O is ?

Answer 9

so 46?

Answer 10

My next question is The figure consists of a tangent and a secant to the circle.
A)9.2 B) 7.7 C) 14.3

Answer 11

Maybe you should post it up as a different question. It will be more fair to your answers

Answer 12

answerers

Answer 13

well that is how it was asked...sometimes changing the question can change the answers!