Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Test: 6



Work Step by Step

1. Interior angles of a triangle have a sum of 180 degree, construct the equation and solve for x (2x+18)+(32-2x)+(20x+10) =180 20x+60=180 20x=120 x=6 2. Plug value of x into angls: 2(6)+18=30 32-2(6)=20 20(6)+10=130
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