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ABC is an isosceles triangle. If the coo...

ABC is an isosceles triangle. If the coordinates of the base are `B(1,3)` and `C(-2,7)` the coordinates of convertex A can be

A

(1,6)

B

(1/2 , 5)

C

(5/6 , 6)

D

none of these

Text Solution

Verified by Experts

Clearly , vertex P lies on the perpendicular bisector of QR whose equation is
`y - 5 = (3)/(4) (x + (1)/(2)) or , 6x - 8y + 43 = 0`
Clearly , (5/6, 6) satisfies this equation . ltbRgt Hence , the vertex P is (5/6 , 6).
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OBJECTIVE RD SHARMA ENGLISH-STRAIGHT LINES-Section I - Solved Mcqs
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