Question

A tree is 8km due south of a building. Kofi is standing 8 km west of the tree. How far is Kofi from the building?

Answer 1

Tree is 8km in South direction

Kofi is standing in 8km of west.

So it will form a right angled triangle

Distance^2 = 8^2 + 8^2

Distance^2 = 64 + 64

Distance = √ 128

Distance = 8√2

Hope it helps.

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