# Garden

Rectangular garden 31 meters 40 centimeters long and 20m30cm wide adjacent with the shorter side with another (fenced) garden and on one longest side is 1 meter wide gate. How many meters of fence is needed to buy? (Estimate, calculate, verify a test calculation, rounded to meters).

Result

x =  83 m

#### Solution:

$a=3140 \ \text{cm} \ \\ b=2030 \ \text{cm} \ \\ \ \\ c=2 \cdot \ a+b-100=2 \cdot \ 3140+2030-100=8210 \ \text{cm} \ \\ \ \\ x=\lceil c/100 \rceil=\lceil 8210/100 \rceil=83 \ \text{m}$

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