Which of the following is not for a parallelogram 1. consecutive angles are supplementary
2. sum of interior angles is 360
3. opposite angles are supplementary
4. none of the above

7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐

entering that problem on the tube might get you an answer

it's d

step-by-step explanation:

"exterior angles = 360 / number of sides.

60 = 360 / sides

sides = 360 / 60

sides = 6"