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18.03.2021 •
History
What is Douglass saying about the 4th of July at the time he gave this speech?
A. Slaves gladly celebrated the 4th of July to remember freedom from Great Britain.
B. The celebration of freedom was a contradiction because there were still slaves in the U.S.
C. Slaves celebrate the Emancipation Proclamation on the 4th of July.
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Ответ:
a. not true. This confuses the diameter (=2r) with the radius (=r).
b. correct. 2πr = 6.28 when 2r=2.
c. correct. if 2πr = 2π, then r must be 1, so area πr² = π1² = π
d. not true. if 2πr = π, then r must be 1/2, so area πr² = 1/4π
e. correct. if r = 1.5, then πr² = 3.14*(1.5)² = 7.065