Answer:71.5
Step-by-step explanation:
2d+37+1+38=2d+76=180
180-76=2d+143
143divided by 2 =71.5
Answer:
d = 57 degrees.
The 3 angles in a triangle add up to 180 degrees, so:
2d + 1 + 38 + 27 = 180
2d = 180 - (1 + 38 + 27)
2d = 180 - 66 = 114
d = 114/2
