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I need help Could someone help me please
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I need help
Could someone help me please

I need help Could someone help me please-example-1
User Gylaz
by
7.6k points

1 Answer

3 votes

Answer:

cos A =
(5)/(13)

Explanation:

cos A =
(adjacent)/(hypotenuse)

To calculate the hypotenuse AB use Pythagoras' identity

AB² = 15² + 36² = 225 + 1296 = 1521, hence

AB =
√(1521) = 39

hence cos A =
(15)/(39) =
(5)/(13) in simplest form



User Salvob
by
7.2k points
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