Find the perimeter of triangle, P, Q, R△PQR. Round your answer to the nearest tenth if necessary. Figures are not necessarily drawn to scale.
To find the perimeter of triangle PQR, we need to add up the lengths of all three sides.
Given:
Side PQ = 7 units
Side QR = 9 units
Side PR = 5 units
Perimeter = PQ + QR + PR
Perimeter = 7 + 9 + 5
Perimeter = 21 units
Therefore, the perimeter of triangle PQR is 21 units.