Prove: e f 4. Prove the theorem: Angles, whose sides are parallel, respectively, are equal to each other, or their sum is 180 Â° Guidance: First case: Given: AC BD, AE BF; Prove: A B= Second Case: Given: AC BD, AE BF; Prove: A B 180+ = Â° 5. ABC is isosceles (AB AC=) Given: DE BC Prove: ADE is isosceles.
For the health and well being, you should not leave your pet home alone too long. Adult dogs (those over 18 months of age) can be left alone four to six hours a day. Young puppies should not be left alone for long periods during the day â around two hours a day is the limit.
1 The average time owners leave their dog alone on a typical weekday varies by the age of the owner;. 44% of 18 to 24 year olds typically leave their dog for more than five hours, while just 13% of those aged 55 and over do. 2  Unsurprisingly, owners who work full time are most likely to leave their dog for longer.