- A100
- B200
- C90
- D110
Step-by-Step Solution
Sum of all angles = 360. Fourth = 360 - (80 + 100 + 80) = 100 deg (it equals its opposite angle 100).
Answer: A) 100
If three angles of a parallelogram are 80°, 100° and 80°, the fourth angle is ____ deg.
Class 8Properties of ParallelogramsQuadrilaterals
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