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famouzgal
20.07.2019 •
Mathematics
Arectangular patio has a diagonal walkway. the length of one side of the patio is 9 meters long. the length of the other side of the patio is 12 meters long. how long is the walkway? round your answer to the nearest tenth.
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Ответ:
A diagonal across creates 2 congruent triangles which are right triangles.
a^2 + b^2 = c^2
12^2 + 9^2 = c^2
144 + 81 = c^2
225 = c^2; find the square root of 225
c = 15 meters
The length of the walkway is 15 meters.
Ответ:
Step-by-step explanation:
D