Find The Length of AB ? If

G is the centroid of DABC. The medians AD and BE intersect at right angles. If the lengths of AD and BE are 9 cm and 12 cm respectively; then the length of AB (in cm) is:

  1. 9.5
  2. 10
  3. 10.5
  4. 11
Desire Adnan Default Asked on 22nd August 2015 in Maths.
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2 Answer(s)

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Answer: (2) 10 cm

Explanation:-
According to the question,
In the diagram-

RE: Find The Length of AB ? If


AB = (62 + 82)1/2
= (36 + 64)1/2
AB = (100)1/2
AB = 10 cm

Then, the length of AB is 10 cm.

Hence, the answer is (2) 10 cm.

 

Anurag Mishra Professor Answered on 22nd August 2015.
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Dear sir,
please help me for math. in this question how you take

AG=6   ,   BG=8  ,   GE =4 ,   DG=3         what formula is used to divide total length (9 cm) of AD  in two parts AG=6 , DG=3

after  AG & BG  length i can solve the AB length

kamal Default Answered on 31st August 2016.
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