sector of circle P has the same area as a sector of circle O. can you conclude that Circle O and Circle O have the same area? Need answer quickly please and thank you.

Ineed in figuring out this problem.

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2

What is the lcm of 16 and 40 ? 24 and 40 ?