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Olegator [25]
3 years ago
9

Determine the length of side BD in the triangle below. 12 15 13 D B с

Mathematics
1 answer:
Romashka [77]3 years ago
7 0

9514 1404 393

Answer:

  BD = 14

Step-by-step explanation:

The Pythagorean theorem can be used to find the lengths of CD and BC.

  CD² +12² = 13²

  CD = √(169 -144) = √25 = 5

__

  BC² +12² = 15²

  BC = √(225 -144) = √81 = 9

__

The length BD is then ...

  BD = BC +CD

  BD = 9 + 5 = 14

The length of side BD is 14 units.

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