Question

The area of area of a rectangular field is 120 sq m. If the perimeter is 46m find its dimensions.

Answer 1

area=120=l*b......(I)
perimeter=46=2(l+b)
23=L+B
L=23-B........(II)
REPLACING IN 2 IN I
120=(23-B)*B
120=23B-B²
B²-23B+120=0