ABC is a right angled isosceles triangle where B=(1,3) and C=(-2,1) then a=
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Answer:
AB=AC
(x−1)
2
+(y−3)
2
=
(x−(−2))
2
+(y−7)
2
(x−1)
2
+(y−3)
2
=(x+2)
2
+(y−7)
2
=2x+1−6y+9=4x+4−14y+49
⇒6x−8y+43=0
By substituting (
6
5
,6)
⇒
6×
6
5
−8×6+43
⇒0
Hence (
6
5
,6) is answer.
Step-by-step explanation:
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