Remember that
The area of a triangle is given by the formula
[tex]A=\frac{1}{2}bh[/tex]
where
A=160 m2
h=1600 cm=16 m
substitute in the formula given values
[tex]\begin{gathered} 160=\frac{1}{2}(b)(16) \\ solv\text{e for b} \\ b=\frac{160*2}{16} \\ \\ b=20\text{ m} \end{gathered}[/tex]
The answer is option D
