Which type of figure is this I think quadrilateral or trapezium but i m not confirm that middle one is which figure and in this we have to find area i think u all can ans mine question

15 points ! ~ see if you know the answer to both you!

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

What is the missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?