Yes, they are! If you divide 63/3 you get 21, and if you divide 147/7 you get 21!:)
Answer:
The measures of the angles are 65° and 80°
Step-by-step explanation:
One of the angles is 35°
We know that the other two angles have a difference of 15°
With this knowledge we can write an equation.
2x symbolizes the two angles
+15 symbolizes the difference between the two angles
145 = 2x + 15
145 - 15 = 130
2x = 130
x = 65
65 is the size of one of the angles.
Next, we add 15 to 65 and we get 80
80 is our second angle
11x - 9x = 2x
-2 + 15 = 13
so...
2x + 13
The answer is D
