Which problem is easier to subtract 15.50- 8.75 or 15.75-9

In the figure dhg fhe which statement is true by cpctc

The perimeter of a quarter circle is 14.28 miles. what is the quarter circle's radius?

Match the following reasons with the statements given to create the proof. 1. do = ob, ao = oc sas 2. doc = aob given 3. triangle cod congruent to triangle aob vertical angles are equal. 4. 1 = 2, ab = dc if two sides = and ||, then a parallelogram. 5. ab||dc if alternate interior angles =, then lines parallel. 6. abcd is a parallelogram cpcte