Q: which is the correct chronological order of advancements in river travel? 1: keelboats-canoes-steamboats-rafts. 2: rafts-keelboats-canoes-steamboats. 3: canoes-rafts-keelboats-steamboats. 4: steamboats-rafts-canoes-keelboats.

3. canoes-rafts-keelboats-steamboats

Explanation:

Canoes vessels were found between 8200 and 7600 BC, and found in the Netherlands, the Pesse canoe may be the oldest known canoe.

The 16th century descriptions by the Spanish of the rafts used by Native Americans along the seacoasts of Peru and Ecuador has incited speculation about the seamanship of who they called "the Indians".

Historical account of two keelboats published in the original "Courier Journal" Of Lafayette, Indiana 1833.

The first steam-powered ship was built in France in 1783 by Marquis Claude de Jouffroy and his colleagues In 1801, Symington patented a horizontal steam engine directly linked to The Margery, launched in Dumbarton in 1814, in January 1815 became the first steamboat on the River Thames, much to the amazement of Londoners.

Reference: Encyclopædia Britannica. “History of Ships.” Encyclopædia Britannica, Encyclopædia Britannica, Inc., 2019,

254.34

step-by-step explanation:

the formula for area of a circle is given by

a = pi * r^2

a = pi * 9^2

a = 81*pi

using 3.14 as an approximation for pi

a = 3.14*81

a = 254.34

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