Answer:
obtuse triangle
Step-by-step explanation:
only one angle in a triangle has to be over 90 degrees for it to be and obtuse triangle
hoped this helped
Answer:
- co-terminal
- reference
- 90°, 105°
- 2π, 7π/4
Step-by-step explanation:
For an explanation of vocabulary questions, consult a dictionary or vocabulary list
1) angles ending in the same place are "co-terminal."
__
2) The acute angle between the terminal ray and the x-axis is the "reference angle."
__
3) Multiply radians by 180°/π to convert to degrees.
a) π/2 × 180°/π = 180°/2 = 90°
b) 7π/12 × 180°/π = (7/12)(180°) = 105°
__
4) To convert from degrees to radians, multiply by π/180°.
a) 360° × π/180° = 2π radians
b) 315° × π/180° = 7π/4 radians
You use the cricle fourmla (πr sqaure). and you will get 7.065
I’m not sure if the 15 is the question number but if it is the answer is 32. use PEMDAS
