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2 years ago

10

Alkaid and Merak are 25.6 ∘ apart in the earth's sky. Find the distance in light-years from Alkaid to Merak. Express your answer

in light-years.

1 answer:

Gemiola [76]2 years ago

4 0

Answer:

Distance =

a

2

+b

2

−2abcosθ

=

101

2

+77

2

−2×101×77×cos(25.6

0

)

which gives,

10201+5929−15554×0.8928

=45.85 which is nearly 46 ly.

Explanation:

:)

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