Please help on this question, I will really appreciate it. I will definitely give brainliest to the answer whom gives the full PROOF, answer, and the statement and reason.

Answer and step-by-step explanation:

Here is the proof!

UR II ST - Givenm<USR = m<SUT - Alternate interior anglesm<R = m<T = 90º - GivenUS = US - Reflexive propertyTriangle RSU = Triangle TUS - AAS {2,3,4}

Hope this helps!!

38+105= 143, 39+104=143, and you will find then adding the numbers on opposite sides, moving inwards yields the answer 138 every time. because of this, you’re going to multiply 138 times the number of pairs, which is 34. therefore, 34*138= 4692(i’m sorry if it’s the wrong numbers, but it’s the right concept)