**Question:**

A 3 by 4 rectangle is inscribed in circle. What is the circumference of the circle?

A. 2.5π

B. 3π

C. 5π

D. 4π

E. 10π

Ook the formula up...but GRE takers know which formula they ate seeking...rihht? Hypoteneuse is square root of 3 squared +4 squared or 9+16=25....the Sq root of which is 5.Thus 5 is the diameter times Thus the answer is 5 times 'pi'..my tablet doesn't have a readily available symbol.GO TO www.math.com for formulas then write them with makeup on your inner arm b4 the test if your memory isoor?.tho I believe they might let you use a calculator nowadays?.I'm 7 soi don't know for sure'pi.'(roughly 3.141592.),

__C__

5__pi__

5pi

__5pi__

4__pi__

4__pi__

5__pi__

5pi

5 x __pi__