A ladder that is 18 ft. long is leaning
1 answer:
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To solve this problem, we will visit the area of a circle formula and supply known values, such as the radius, to answer the question.
<h3>Define</h3>To find the area of a circle given its radius, use the formula:
where is the radius of the circle and A is the area.
Substitute the known value for the radius in the formula.
To simplify, use BPEMDAS, which evaluates in the proper Order of Operations:
Brackets
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Use BPEMDAS:
Simplify by rearranging the coefficient in front of the variable:
As this is an area, our final result must be squared:
The final answer to this problem is square units. The answer can also be represented in a non-exact (approximate) format, which is solved below.
To get the non-exact format of this answer, instead of leaving in the final answer, multiply it by the leading coefficient.
Simplify to the one-hundredths place:
For final answers:
To learn more about how to find the area of a circle given the radius, visit this helpful link: