There is 180 degrees in a triangle so it is 80 degrees
No picture attached, if it is a right angle angle 2 = 28 (72+28 = 90)
Answer:
9x2+4x−14
Step-by-step explanation:
Answer:
Second option is correct

Step-by-step explanation:
Given:
Central angle = 15°
Radius of the circle = 9 in
Arc length = ?
Given formula is

Where n is the central angle of the sector.
Write the given formula for Arc length of the sector.

We know that the the circumference of the circle is
, where r is the radius of the circle,

Now we substitute central angle value and radius value in above equation.


----------(
)

Divide the numerator and denominator by 5.

Therefore the arc length of the sector is 
Answer:
D
Step-by-step explanation:
Plug in every scenario, in see if it equal to each other.
D is the only one that is equal.