The reason behind the statement m∠TRS + m∠TRV = 180° is; Angle Addition Postulate
<h3>How to use angle addition postulate?</h3>
Angle addition postulate states that if D is the interior of ∠ABC, therefore, the sum of the smaller angles equals the sum of the larger angle, which from the attached image is;
m∠ABD + m∠DBC = m∠ABC.
From the attached image, we want to prove that x = 30°.
Now, T is the interior of straight angle ∠VRS.
m∠VRS = 180° (straight line angle)
Thus, from angle addition postulate, we can say that;
m∠TRS + m∠TRV = 180°.
Read more about two column proofs at;brainly.com/question/1788884
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The type of health insurance<span> coverage that may cover routine doctor visits, X-rays ... </span>If<span> her </span>total<span> bill is $4,000, how </span>much will<span> she be required to </span>pay<span>? A. $400 ... D. The covered </span>employee's<span> death. ... C. Brandon </span>will pay<span> $150 and his </span>insurance company will pay $100<span>. ... C. Disability income </span>insurance pays<span>actual </span>medical costs<span>.</span>
Answer:
34 pages
Step-by-step explanation:
For the first three pages, Sonia is already down 13 dollars.
106-13=93 dollars left
93/3 dollars per page =31
31+those three first pages=34 pages