Answer:
D. 7/8
Step-by-step explanation:
Answer:
It is an acute triangle.
Step-by-step explanation:
It would be much easier for you to see where I'm getting at if you draw a diagram.
Assume this triangle is labelled ABC where a = 14, b = 21, and c = 16.
cos A = (16^2 + 21^2 - 14^2)/(2(16)(21))
∠A = cos^-1(0.82291...)
∠A ≅ 34.6°
cos B = 16^2 + 14^2 - 21^2)/(2(16)(14))
∠B = cos^-1(0.024...)
∠B ≅ 56.8°
∠C = 180 - (∠A + ∠B)
∠C ≅ 56.8°
Since there is no right-angle nor is there an obtuse angle,
Therefore the triangle is an acute triangle.
The correct answers are (-3, 4) (-6, 6) (0, 2)
Answer:
remove any unnecessary information
Step-by-step explanation:
the answer is C. 60 degrees. The problem says that all three angles equal each other. Since all three angles in a triangle always equals 180 degrees. divide 180 by 3 and you get your answer.
