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Question
secondary 2 | Maths
2 Answers Below
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Help for qn 1 please thank you☺️☺️
Date Posted: 7 years ago
Views: 707
A scale of 1:50000 means "1 cm on the map represents 50000cm = 500m = 0.5km in actual length".
Therefore "1 cm^2 on the map represents 0.5 x 0.5 = 0.25km^2 in actual area".
Therefore area of plantation on map
= 625/0.25
= 2500cm^2
Therefore length of plantation on map
= sqrt (2500)
= 50cm
Perimeter of plantation on map
= 50 x 4
= 200cm
= 2m
Therefore "1 cm^2 on the map represents 0.5 x 0.5 = 0.25km^2 in actual area".
Therefore area of plantation on map
= 625/0.25
= 2500cm^2
Therefore length of plantation on map
= sqrt (2500)
= 50cm
Perimeter of plantation on map
= 50 x 4
= 200cm
= 2m
See 2 Answers
done
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clear
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Convert the length ratio to area by 'squaring' it.
Then apply conversion of km^2 to cm^2.
Divide & you'll get the area on map .
Then apply conversion of km^2 to cm^2.
Divide & you'll get the area on map .
Date Posted:
7 years ago
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