A tree is 8km due south of a building. Kofi is standing 8...
A tree is 8km due south of a building. Kofi is standing 8km west of the tree. How far is Kofi from the building?
4√2km
8km
8√2km
16km
Correct answer is C
x2=82+82
x2=64+64=128
x=√128
= 8√2 km
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