A teacher asks four students to determine the area of a circle with a circumference of 50.24 feet. The table shows the students’
responses.
Which student determines the area of the circle correctly? (Use 3.14 as an approximation of pi.)
Which student determines the area of the circle correctly? (Use 3.14 as an approximation of pi.)
1 answer:
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ANSWER
Options B, C and D have exactly 2 significant figures.
<u>EXPLANATION</u>
To see whether the numbers have exactly 2 significant figures, round all to 2 significant figures. The ones that remains the same have exactly 2 significant figures.
yards to 2.s.f
gallons to 2.s.f
feet to 2.s.f
litters to 2.s.f\
meters to 2.s.f