How to find the measure of an arc in degrees?

Can you find the measure of angle PRT if arc PT=105 degrees and arc QS=15 degrees?

• 1. The measure of angle 1=14x+1 and the measure of arc JK=29x-4. Find the measure of angle 1. http://i190.photobucket.com/albums/z246/dropdeadnessa/Math%20Homework/11.gif a. 29 degrees b. 62 degrees c. 85 degrees d. 110 degrees 2. Find the measure of angle PRT if arc PT=105 degrees and arc QS=15 degrees. http://i190.photobucket.com/albums/z246/dropdeadnessa/Math%20Homework/12.gif a. 45 degrees b. 60 degrees c. 30 degrees d. 75 degrees 3. Given circle O, which of the following is a tangent of the circle? http://i190.photobucket.com/albums/z246/dropdeadnessa/Math%20Homework/13.gif a. segment OD b. segment BC c. line EF d. line AG e. none of the above 4. Find the circumference and area of a circle with radius of 3 feet. Use pi=3.14 and round your answers to the hundredth. a. C = 37.68ft and A = 113.04ft squared b. C = 37.68ft and A = 28.26ft squared c. C = 18.84ft and A = 113.04ft squared d. C = 18.84ft and A = 28.26ft squared 5. The measure of angle ABD=9x+7 and the measure of angle DCA=11x-3. Find the value of x. http://i190.photobucket.com/albums/z246/dropdeadnessa/Math%20Homework/15.gif a. 5 b. 2 c. 1/2 d. 8.8 .

• Answer:

  // 4. Find the circumference and area of a circle with radius of 3 feet. Use pi=3.14 and round your answers to the hundredth. a. C = 37.68ft and A = 113.04ft squared b. C = 37.68ft and A = 28.26ft squared c. C = 18.84ft and A = 113.04ft squared d. C = 18.84ft and A = 28.26ft squared answer is D