1.

Construct PQR if PQ=5cm,

Answer» FIRST draw PQ 5 cm.Then draw angle PQR 105 degree
By angle SUM property
sum of 3 angles is 180 degree
so,sum of angle Q ,R and P is 180
therefore,angle P will be 180 MINUS 105 plus 40
180 minus 145 is 35 degree
so,angle P is equal to 35 degree
then draw angle P
and at last measure angle R



hope it will be helpful for you....


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