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angelthompson2018
22.06.2019 •
Mathematics
What is the length of angle ef in the right triangle below
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Ответ:
E. √180
Step-by-step explanation:
Using Pythagoras' theorem
a^2 + b^2 = c^2 (c = hypotenuse, a and b are legs)
a^2 = c^2 - b^2
a^2 = 18^2 - 12^2
a^2 = 324 - 144
a^2 = 180
a = √180
Answer
E. √180
Ответ:
30 tens
90 is the greatest number of tens