Rule: with any inscribed quadrilateral, the opposite angles are supplementary (they add to 180 degrees)
Based on that rule, we can say
d+100 = 180
d+100-100 = 180-100
d = 80
Answer: 80
Answer:x<1/7 (5 - sqrt(130))
Step-by-step explanation:
Answer:
The 1st, 3rd, 4th, 5th are correct
