Answer:
с. 57°
Step-by-step explanation:
The measure of the exterior angle of a triangle is equal to sum of the opposite interior angles
114 = y+y
114 = 2y
Divide by 2
114/2 = 2y/2
57 =y
Answer:28.2753
Step-by-step explanation:
In this case, you aren't going to get an integer for the value of a, but you can rearrange the equation to equal a.
4a-3=D add 3 to both sides
4a=D+3 divide both sides by 4
a=(D+3)/4 here's your answer