Rebecca is designing a backpack and needs to determine the length of the adjustable strap that connects the shoulder strap to the backpack. the height of the backpack is 19.5 inches and the shoulder strap is 12 inches.

which is not a possible length for the connecting adjustable strap?

7 in
10 in
15 in
22 in

x

step-by-step explanation:

proofs involving isosceles triangles often require special consideration because an isosceles triangle has several distinct properties that do not apply to normal triangles.(more about triangle types) therefore, when you are trying to prove that two triangles are congruent, and one or both triangles, are isosceles you have a few theorems that you can use to make your life easier.

step-by-step explanation:

an isosceles triangle has two congruent sides and two congruent angles. the congruent angles are called the base angles and the other angle is known as the vertex angle. ∠bac and ∠bca are the base angles of the triangle picture on the left. the vertex angle is ∠abc