Answer:
I think the answer is the last choice
Mark Brainliest please
See the image for the drawing
Let’s say the side BC is extended till D
1) measure of angle ACD = 105° ( angle ACD is exterior angle)
45 + 60 = 105
2) I found the answer by adding the values of Angle A and Angle B or by using the exterior angle property.
3) I observed that exterior angle property can be used here. Exterior angle property is that an exterior angle of a triangle is equal to the sum of the opposite interior angles.
6(-3)*4(3)*3
-12 *12 *3
-144*3
-432
Answer: -432