Question

abc is a right triangle right angled at c. If A=30 and AB=40 units, find the remaining two sides and angle B of triangle ABC

Answer 1

is this question is correct???

Answer 2

sinA = p/h = BC/AB
sin30° = BC/40 unit
1/2 = BC/40 unit
doing cross multiplication,
2BC = 40 unit
BC = 40/2 = 20unit
by Pythagoras theorem,
we get other side