Answer:
=51 units^2
Step-by-step explanation:
When using the area formula, he needs to be careful to label correctly.
The sides opposite the angles have the same letters
Angle A = unknown a = 17
Angle B = 45 side b = 12
Angle C = 30 side c=8
Area = 1/2 ab sin C
= 1/2 ( 12*17) sin 30
=51 units^2
