Question

if a=5+2sqrt(6) than a-(1)/(b) is equal to:
a) 4sqrt(6)
(b)-4sqrt(6)
(c) 10
(D) -10​

Answer 1

Step-by-step explanation:

Given : In triangle ABC a is 5, b is 12,and c is 13

To Find : length of the median passing through B

Solution:

a = 5, b= 12 c= 13

a = BC , b = AC , c = AB

as 5² + 12² = 13²

Hence triangle is right angle triangle at C

b = 12

Hence median through B will comes on b = 12

Let say BD is the median

CD = AC/2 = 12/2 = 6

BC = 5

C is right angle

Hence BD² = 5² + 6²

=> BD² = 61

=> BD = √61

Hence median passing through B is √61

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