Step-by-step explanation:
Let the angle near point A be
.
Let the angle near point B be
.
Let the angle near point C be
.
Let the external angle near point A be
.
Let the external angle near point B be
.
Let the external angle near point C be
.
According to exterior angle property,exterior angle of an angle is the sum of other two angles.
So,

According to angle sum property,the sum of angles in the triangle add to 

Answer:
b,c,f
Step-by-step explanation:
a is -8
b 8
c 8
d -8
e 1-
f 8
g -8
h -8
Let's take the number as x.
two-fifths of a number = 2x / 5
decreased by 3 = (2x/5) - 3
(2x/5) - 3
(2*25/5) - 3
(2*5) - 3
10 - 3
7
The answer would be choice C.
Perpendicular lines cross each other and form a right angle as you can see marked in the third picture.
1/5 cups of sugar are used for every cup of water.