- AYes, it is a valid quadrilateral
- BNo, the sum is 400° which is too much
- CYes, but only if it is a square
- DNo, the sum is 320° which is too little
Step-by-Step Solution
deg, but a quadrilateral's angles must sum to exactly 360°, so it cannot exist.
Answer: B) No, the sum is 400° which is too much