If anyone can point me in the right direction please. For #3-5 can i create a triangle, out of all 3 problems, obviously #3 is already a right triangle. And apply pythagoras therom to solve for the other side? Then find the area of the triangle and deduct that area from the total area of the circle to find ab?

for questions 1& 2 i am at a total loss. Any help and guidance would be greatly appreciated. Remember im learning. Thank you so much. Have a nice day.

Let's try again, with a more positive start.

In #3,

**yes**, you can use the Pythagorean theorem to find the other leg of the right triangle, which is half the chord. But you don't really

**need** to do that to answer the question, which is not about segment lengths or areas, but about

**arc length**, for which you will need to find the

**angle** at the center of the circle. You'll have to use an

**inverse trigonometric function**; please tell us what you know about doing that, and show whatever work you can do on it.

In #4 and #5, you can use the same technique, drawing the perpendicular yourself and using the fact that it divides the chord into equal parts.

For #1, sketch the figure, and use the fact that triangle WXT will be a right triangle. Then use the Pythagorean theorem.

For #2, sketch the figure, and label the length of ET "x". What is an expression for the length of EM? Then you can write an equation to solve for x.

The more information you give us about what you do know, and where you are stuck on a problem, the easier it is for others to help. See

this summary of our submission guidelines, if you haven't already. That is, we know you're

__learning__ something, or you wouldn't be asking; but we don't know

__what__ you are learning, and what you have learned, unless you tell us. (It is a little confusing that you have some mere Pythagorean Theorem problems followed by some inverse trig/arc length problems, which are quite different.)