Three friends - Anshu, Vijay and Vishal are playing hide and seek in a park. Anshu and Vijay hide in the shrubs and Vishal have to find both of them. If the positions of three friends are at A, B and C respectively as shown in the figure and forms a right angled triangle such that AB = 9 m, BC = 3√3 m and ∠B = 90°, then

(i) The measure of ∠A is

Options

A. `45^@`
B. `60^@`
C. `30^@`
D. `90^@`

Answer

C