Answer:
Option b. 40.5 units²
Step-by-step explanation:
we know that
Applying the law of sines
The area of a triangle is equal to
A=(1/2)(b)(c)sin(A)
The angle A is the included angle between side b and side c
substitute the values
A=(1/2)(14)(9)sin(40°)=40.5 units²
