Question

Help with geometry of circles!! I need to find x.

Answer 1

It's important that W and Z are the terminal points for both the angle at X and the angle at Y. This must mean that those two angles are equal!!

For future reference, using Upper Case X for an Angle Name and Lower Case x for a variable can be confusing. You may wish to change designations or make the difference more obvious.

Answer 2

SOLVE THE EQUATION: x+2 = 3x-40

Answer 3

x=21?

Answer 4

what do you mean? @tkhunny

Answer 5

yes. draw a line w-z. And use the theorem: Angles in the same segment of a circle are
equal. Hence, x+2 = 3x-40. Got it?

Answer 6

I did thankyouuu!!!

Answer 7

would you please help me with another question?

Answer 8

Depends on the question.

Answer 9

I need to write the equation of a circle with a center at (1,2) and a diameter of 15

Answer 10

I don't want to give you the answer right away, but want you to answer few questions. What do you think is the radius if Diameter is 15?

Answer 11

7.5?

Answer 12

yes. and do you know the formula of a circle? if not, memorize this: \[(x-a)^2 + (y-b)^2 = r^2\]

Answer 13

This is an eyeball problem. You should write down the answer about as quickly as you can read it.

\((x-1)^{2} + (y-2)^{2} = (15/2)^{2}\)

Answer 14

thank you!! so much guys:)

Answer 15

if I have to write the equation of a circle with a center at (0,0) and a diameter of 20

Answer 16

would the equation go like this: x^2+y^2=10^2

Answer 17

@padalan

Answer 18

yes