** 1) Find the area of a circle whose radius is 3**

(A) 3π

(B) 6π

(C) 9π

(D) π

** 2) Find the length of the circumference of a circle whose radius is 4**

(A) 4π

(B) 8π

(C) 16π

(D) 2π

** 3) Find the circumference of a circle whose area is 100π**

(A) 10

(B) 20

(C) 10π

(D) 20π

** 4) What is the area of a circle whose circumference is π?**

(A) π/4

(B) π/2

(C) π

(D) 2π

** 5) What is the area of a circle that is inscribed in a square of area 2?**

(A) π/4

(B) π/2

(C) π

(D) π√2

** 6) A square of area 2 is inscribed in a circle. What is the area of the circle?**

(A) π/4

(B) π/2

(C) π

(D) π√2

** 7) A rectangle with sides 5 and 12 is inscribed in a circle. What is the radius of the circle?**

(A) 6.5

(B) 7

(C) 8.5

(D) 13

** 8) Which of the following line meet the circle in one point?**

(A) secant

(B) diameter

(C) chord

(D) tangent