1. Identify the diameter of the circle

2.Identify the radius of the circle

3.Identify the center of the circle

4. Find the value of x

5. RS is tangent to the circle with center C at S and RT is tangent to the circle with center C at T. RT = 3x + 4 and RS = 28 Find the value of x

6. Find the radius

7. GPS satellites orbit about 11,000 miles above Earth. The mean radius of Earth is about 3959 miles. Because GPS signals cannot travel through Earth, a satellite can transmit signals only as far as points A and C from point B, as shown. Find BA and BC to the nearest mile using Pythagoras theorem .

8. Find the distance from A to the center

9. If PA and PB are the tangents to the circle with centre O and PA = 3x + 8, PB = 26, then x =

10. If JG is a tangent to the circle, what is the value of x and and the measure of ∠JGH?