Question

construct triangle PQR if PQ is 5cm, measure angle PQR =105° ,measure angle QRP =40° .

Answer 1

draw PQ of 5cm
make angle Q of 105° (bisect 90° & 120°)
use angle sum property to find angle P
you will find that angle P is 35°
draw angle P of 35°
mark the point of intersection as R

Answer 2

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