Question

what is the area of obtuse angled triangle with its two sides 8 and 12 and the angle included by them is 120​

Answer 1

Answer:

Area = 1/2(ab sin C) where C is included angle between the sides a and b, so reqd area is

1/2 (8*12*sin 150) = 24, as sin150=sin 30 =1/2