Question

Uncle has a rectangular farm with a width of 5.9 hm. The length of the land is 4.9 times its width. How big is the uncle's farmland?

Answer 1

Breath = 5.9cm

length = 4.9 × 5.9 = 28.91cm

now area of rectangle = length × breath

= 5.9 × 28.91

= 170.569cm

so the uncle has the farmland of area 170.569cm

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Answer 2

Settlement :

Land length = $5\frac{1}{2}$ × $1\frac{3}{4}$ = $\frac{11}{2}$ × $\frac{7}{4}$ = $\frac{77}{8}$ = $9\frac{5}{8}$ hm

Land area = Area of a rectangle

                 = length × width

                 = $9\frac{5}{8}$ × $5\frac{1}{2}$ = $\frac{77}{8}$ × $\frac{11}{2}$ = $\frac{847}{16}$ = $12\frac{15}{16}$

So, uncle's agricultural land area is $12\frac{15}{16}$ hm²