Answer:
A.3
Step-by-step explanation:
the key word is Congruent ^_^
Answer:
1x + 4
Step-by-step explanation:
-5x- 3x+ 4+ 9x
first you add -5x and -3x
which is
-8x
-8x + 4 + 9x
now you add -8x and 9x
which is
1x
final answer is
1x + 4
Answer:
1.33
Step-by-step explanation:
Answer:
The triangle angle rule says that all of the angles in a triangle will add up to equal 180. So to find x we subtract the given angles ( 45 and 60 in this case) from 180.
x = 180-60-45
180-60-45=75
so x = 75
To find y we know that angle x and and y are angles formed on a straight line that are split up by a triangle segment. These angles are called supplementary angles which add up to equal 180.
So knowing that angle x = 75 we can find angle y by subtracting 75 from 180
180-75=105 so y = 105
Another way we could solve for y is the exterior triangle rule
This rule states that an exterior angle of a triangle is equal to the two opposite interior angles
so y = 45 + 65
45 + 65=105
so y = 105
Step-by-step explanation:
