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carealee
13.06.2021 •
Mathematics
A plank of wood leans against a wall with its upper end 5.1 metres off the ground. Its lower end is 3.2 metres from the foot of the wall. How long is the plank of wood ?
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Ответ:
5.1+3.2=10000000 1 is a great place to work for and it is a great place to work
Ответ:
9514 1404 393
6.0 m
Step-by-step explanation:
The desired length is the hypotenuse of a right triangle with legs 5.1 m and 3.2 m. The Pythagorean theorem tells you that length (in meters) is ...
length = √(5.1^2 +3.2^2) = √36.25
length ≈ 6.0208 . . . . meters
The plank of wood is about 6.0 meters long.
Ответ: