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Mice21 [21]
4 years ago
15

How do i find the length of side AB?

Mathematics
1 answer:
Elis [28]4 years ago
5 0

Answer:

AB = 78

Step-by-step explanation:

Using Pythagoras' identity in the righr triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

AB² = 72² + 30² = 5184 + 900 = 6084 ( take the square root of both sides )

AB = \sqrt{6084} = 78

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