Explore the properties of angles formed by
two intersecting chords.
mZDEB = 105
1. The intersecting chords form vertical
angles. If m 2DEB = 105°
then m ZAEC =)

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⭐

never fear papaguy is here

answer