Question

Number of values of `alpha` such that the points `(alpha,6),(-5,0)` and (5,0) form an isosceles triangle is
A. 4
B. 5
C. 6
D. 7

Answer 1

Correct Answer - B
We have `A(alpha,6), B(-5,0)` and `C(5,0)`
If `AB =AC`, we get `alpha = 0`. Hence, we get one value of c If `AC = BC`, we get `alpha = - 3,13`
`alpha` can take 5 units: `0,3,-3,13,-13`