The Perimeter of a Rectangle Is $50$ Cm, and Its Area Is

Multiple Choice

The perimeter of a rectangle is $50$ cm, and its area is $126 \mathrm {~cm} ^ { 2 }$ . Find its dimensions.

A) $7 \mathrm {~cm} \times 18 \mathrm {~cm}$
B) $8 \mathrm {~cm} \times 20 \mathrm {~cm}$
C) $8 \mathrm {~cm} \times 19 \mathrm {~cm}$
D) $6 \mathrm {~cm} \times 19 \mathrm {~cm}$
E) $9 \mathrm {~cm} \times 20 \mathrm {~cm}$