Among many other formulas, the area of a triangle is

where B is the angle between sides a and c.

Answer: 92.05 sq cm, first choice
Bonus. Here's a formula for the area S of a triangle your teacher doesn't know:

Answer:
The triangle is a right triangle, m<c = 50 degrees, angle A + angle c = 90 degrees.
Step-by-step explanation:
Answer: 4.5 looks the most reasonable to me.
Step-by-step explanation:
Answer:
0 percent because all the students got an A grade.
3a^6 -2a^5 +a^4
Brainly says my answer is too short so I have to add extra text here