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.
Here are some things to consider when deciding if your child is old enough to be home alone without a sitter: 1  Generally speaking, a child must ne 12 years of age or older before you are legally permitted to leave him home alone for any period of time. Generally speaking, a child must ne 12 years of age or older before you are legally permitted to leave him home alone for any period of time. 2  In some states and municipalities this may be different, and before you even consider doing so, check with your local law enforcement agency to know the laws.