Question

Find the perimeter of rectangle PQRS with vertices P(0,0), Q(0,7), R(12,7) & S (12,0).

Answer 1

Perimeter is the sum of all sides
Therefore use the distance formula distance= underoot{(x2-x1)^2+(y2-y1)^2}
Example for PQ: underoot{(7-0)^2-(0-0)^2)} = 7
do this for qr, rs and sp and the final answers :)