16. John has spent 4 hours on his homework and estimates that he has completed 1/7 of his homework assignment.
1 answer:
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Answer:
Given the statement: Crater Lake in Oregon in shaped like a circle with a diameter of about 5.5 miles.
Area of circle is given by:
where
A represents the area of a circle
d represents the diameter of a circle.
then;
It is given that Surface of Crater lake is shaped like a circle.
Substitute the given values, we have;
Area of a circle =
= square miles
therefore, the area of a surface of a crater lake is, 23.74625 square miles.