Question

in a figure RS||PQ and R=45° find a,b and c value​

Answer 1

Answer:

$applying angle sum property in triangle PQR,</p><p></p><p></p><p>∠PRQ+∠RQP+∠QPR=180O</p><p></p><p></p><p>∠PRQ+45O+55O=180O</p><p></p><p></p><p> ∠PRQ=80O</p><p></p><p></p><p>∠PRQ+∠QRT+∠TRS=180O (angles forming a straight line)</p><p></p><p></p><p>80o+a+b=180o</p><p></p><p></p><p>a+b=100o</p><p></p><p>$