Which step can be used to prove that triangle efg is also a right triangle?

prove that the sum of a and c is greater than b.

prove that the sum of a and b is greater than c.

prove that triangles are congruent by sss property and hence angle egf is equal to angle kml.

prove that the ratio of ef and kl is greater than 1 and hence the triangles are similar by aa postulate.

Can someone me and do the problem plz so i can understand it more better

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?

Acompany produces packets of soap powder labeled “giant size 32 ounces.” the actual weight of soap powder in such a box has a normal distribution with a mean of 33 oz and a standard deviation of 0.7 oz. to avoid having dissatisfied customers, the company says a box of soap is considered underweight if it weighs less than 32 oz. to avoid losing money, it labels the top 5% (the heaviest 5%) overweight. how heavy does a box have to be for it to be labeled overweight?