MCQ
Three angles of a quadrilateral are 80º, 95º and 112º. Its fourth angle is:
- A100°
- B73º
- C85º
- D78º
✓
Answer
- 73º
Solution:
Let the fourth angle be x
80º + 95º + 112º + xº = 360º (Sum of angles of quadrilateral)
287º + xº = 360º
x = 360º – 287º
= 73º
Hence, 73º is correct.
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