Answer:
105°
Step-by-step explanation:
The Arc DB = 150°,
If an angle goes from the center of the circle it is the same as the arc. If the angle is inscribed in the circle it is half the arc.
In this case A is inscribed in the circle so its value is half the arc,
The arc is 360 - 150 = 210°
Angle A = 210 / 2 = 105°
Answer for Practice 8-4:
1. Right, Scalene
2. Acute, Isosceles
3. Obtuse, Scalene
4. Isosceles
5. Scalene
6. Equilateral
7. Scalene
8. Acute
9. Obtuse
10. Right
11. Right
12. This cannot be done because a right triangle always has two acute angles (cannot be right-angled and obtuse-angled at the same time)
14. Can't be done because a scalene triangle has no congruent sides, while isosceles triangles have two equal sides and two equal angles.
Answer:
286 people were supporters of the home team
Answer:
X = 7/3y - 10/3
Step-by-step explanation:
Add - 7y to both sides = -3x + 7y = 10 - 7y
= -3x = 10 - 7y
Divide both sides by -3
-3x/-3 = 10/-3 - 7y/-3
x = 7/3y - 10/3
Answer:
i think its c but im not 100 percent sure.
Step-by-step explanation: