A cylinder has a cross section of a circle as well as the sphere.
18 plus 12 divided by 2 = thats how u get the answer
Answer:
what is the question about the given numbers
Answer:
57°
Step-by-step explanation:
Let's assume the measurement of the second angle is x.
so, following the problem
(2x + 9) + x = 180
2x + x = 3x
=> 3x + 9 = 180
=> 3x = 180 - 9
3x = 171
x = 171/3
x = 57°
57° is the smallest angle
