One side of a rectangular field is 4 m and its length along diagonal is 5 m. What is the area of the field?
12 sq m
4$\sqrt{14}$ sq m
20 sq m
15 sq m
Explanation:
5=$\sqrt{4^2+b^2}\rightarrow b^2 =9$
lb = 3 $\times$ 4 = 12
Next Question
A man walked 20 m to cross a rectangular field diagonally. If the length of the field is 16 cm. Find the breadth of the field is?