Math, asked by halfdinner4882, 1 year ago

A(5,-3),B(8,2) and C(0,0) are the vertices of a triangle .show that the median from A is perpendicular to the side BC

Answers

Answered by malar1
23
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Answered by amitnrw
6

Median from A is perpendicular to the side BC if A(5,-3),B(8,2) and C(0,0) are the vertices of a triangle

Step-by-step explanation:

A(5,-3),B(8,2) and C(0,0) are the vertices of a triangle

Let AD is median

=> D is mid point of BC

D = (8 + 0)/2 , (2 + 0)/2 =  4 , 1

Slope of AD  =  ( 1 -(-3))/(4 - 5)  = 4/(-1) = - 4

Slope of BC =  ( 2 - 0)/(8 -0) = 2/8 = 1/4

Two lines are perpendicular if multiplication of their slope = -1

Slope of AD * Slope of BC

= -4 * (1/4)

= - 1

=> AD ⊥ BC

Median from A is perpendicular to the side BC

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