Study for test (@sean

3
5
Final Answer
There is a ratio of
2:7:9, What are
measures of the
angles
All the angles
of a triangle
equal 180°
Or, a+b+c=180
Now,
18x=180°
180
divided by
18 is 10
Add up 2, 7, and
9 which equals 18 Next , multiply
each number by
10
a=20°
b=70°
c=90°
2:7:9
2x10=20
7x10=70
9x10=20
Note
(this is not my handwriting)