zariyastanfield4452
18.01.2021 •
Physics
The first person to map the Milky Way Galaxy using radio waves was
Karl Jansky.
Grote Reber.
Albert Einstein.
Sir Isaac Newton.
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Ответ:
B
Explanation:Grote reber was the first scientist to map the milky way galaxy using radio waves.
Ответ:
Step-by-step explanation:
x+5+x+7x-5=180 degree (being the interior angles of a triangle)
9x=180
x=180/9
x=20 degree