Nasrin has drawn a circle in her note book and marked 11 fine dots on the circle.She joined first dot to all other 10 dots to make chords. a) How many chords can be drawn by joining second dot to the remaining dots in the same circle. b) How many chords can be drawn using the third dot? c) How many chords can be drawn using the fourth dot? d) Find the total number of chords that can be drawn in this circle joining all 11 dots.
Answers
Step-by-step explanation:
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Step-by-step explanation:
Correct option is B)
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords =
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2 =
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2 = 19!2!
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2 = 19!2!21!
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2 = 19!2!21!
Correct option is B)A chord is obtained by joining any two points on a circle. Therefore, total number of chords drawn through 21 points is same as the number of ways of selecting 2 points out of 21 points. This can be done in 21 C 2 ways.Hence, total number of chords = 21 C 2 = 19!2!21! =21×10=210