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CBSE Class 10 Answered

Question 18 A segment AB of 2 m length is divided at C into two parts such that AC2 = AB. CB. Find the length of the part CB
Asked by miniprasad | 21 Sep, 2018, 05:59: PM
answered-by-expert Expert Answer
Let the length AC be x.
CB = 2 - x
 
AC2 = AB × CB
x2 = 2(2 - x)
Solving this we get
x2 + 2x - 4 = 0
Using formula we get x = AC= -1 ± √5 and then find the value of CB.
Answered by Sneha shidid | 24 Sep, 2018, 12:59: PM

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