Each train has a weight limit of 1,500 pounds. the average adult weighs 150 pounds, and the average child weighs 100 pounds. the next family waiting to ride has three adults and four children. can the whole family ride in the same train? (i know the answer, but i just wanna see how many people answer it and i wanna give out some points for no reason)

Yes the whole family can ride in the same train. 3(150)+4(100)=850 lbs. 850<1500 so they are under the weight limit.

i think it would be 42cm

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