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-Dominant- [34]
3 years ago
5

Sally travels to work each day. she travels 12 km east from home to main road. sally then travels 9 km north on the main road to

work. if the council was to put a direct road from sally's house to work, how much shorter would her journey be?
a. 6 km
b. 7.94 km
c. 11.06 km
d. 15 km
Mathematics
1 answer:
marshall27 [118]3 years ago
7 0
This way Sally travels 12+9=21 kilometers.
If there was a direct way she could go to work, that way would have been 15 km (because her way to work forms a right-angled triangle).
Therefore her journey would be 21-15=6 km shorter. Choice A.
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