### Quiz: How Much You Know About Circle And Tangents? ### Questions & Options

#### 1. Which of the following is the longest chord of the circle?

 112814 Radius 112815 Diameter 112816 Secant 112817 Tangent

#### 2. A line that intersects a circle in two distinct points is called ......

 112818 Chord 112819 Tangent 112820 Secant 112821 Sector

#### 3. A tangent to a circle is a line that intersects the circle at exactly......

 112822 Three points 112823 Two Points 112824 Zero points 112825 One point

#### 4. ........ is the distance once around the circle.

 112826 Radius 112827 Circumference 112828 Diameter 112829 Sector

#### 5. A line segment that goes from one point to another on the circle's circumference is called a ......

 112830 Chord 112831 Arc 112832 Secant 112833 Tangent

#### 6. A part of the circumference is called .....

 112834 Chord 112835 Arc 112836 Radius 112837 Sector

#### 7. Two tangents can always be drawn to a circle from any point outside the circle, and these tangents are ..... in length.

 112838 Different 112839 Similar 112840 Equal 112841 None of these

#### 8. Two or more circles that have the same center, but different radii is called .....

 112842 Tangent circle 112843 Concentric circle 112844 Congruent circle 112845 All of these

#### 9. Congruent circles are those circles that have the same ...... but different .....

 112846 Radius , Chord 112847 Centers , Circumference 112848 Circumference, Chord 112849 Radius, Centers

#### 10. How many parts are in a circle?

 112850 5 112851 7 112852 8 112853 10

#### 11. Who found the first theorems relating to circles around 650 BC?

 112854 Thales 112855 Ahmes 112856 Both of these 112857 None of these

#### 12. What is the formula for the area of the circle?

 112858 2π r 112859 π r² 112860 3/4 π r² 112861 1/2π r²