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lorasvet [3.4K]
2 years ago
8

A ladder is 12 metres long . It leans against a wall with one end on the ground 7 metres from the wall. The other end just reach

es a windowsill. Calculate the height of the windowsill above the ground.
i need an explanation please...
Mathematics
1 answer:
MissTica2 years ago
6 0

Answer:

window sill height =9.75 meters

Step-by-step explanation:

Ladder^2=height^2+length^2

12^2=height^2+7^2

144=height^2+49

height^2=144-49=95

height=9.75

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