Q 2. Construct if PQ = 5 cm, and .
if PQ = 5 cm, and :
the sum of angles of a triangle is 180 degrees. Given angles PQR and QRP, so the angle QPR= 180-(105+40)=35 degrees
1. Draw the line PQ=5 cm
2. At Q making an angle 105 degrees with PQ draw a line QY
3. At P making an angle 35 degrees with PQ draw a line PX
4. The lines PX and QY intersect at R ( in case the drawn line PX or QY is small extend it to intersect each other)
PQR is the required triangle