One side of a rectangular field is 4 m and its length along diagonal is 5 m. What is the area of the field?  Choose the correct choice:	A) 13√8	B) 13√2	C) 13√4	D) 13√2	E) 13√1
4a = 48 4a = 20   a = 12 a = 5   a2 = 144 a2 = 25   Combined area = a2 = 169 =&gt; a = 13   d = 13√2.Answer: 13√2
<result>B</result>
One side of a rectangular field is 4 m and its length along diagonal is 5 m. What is the area of the field?