A circle has a radius of 3. An arc in this circle has a central angle of 20°. What is the length of the arc? Either enter an exa
ct answer in terms of or use 3.14 for 1 and enter your answer as a decimal.
1 answer:
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Answer:
x=0.76 or -5.26
Step-by-step explanation:
You can apply the completing square method to solve this ;
Rewrite the equation with a zero like below
This is by taking 8 to the left side of the equation
Divide the terms by 2 in x²
Move the number term to the right side of the equation
complete square on the lefts side of the equation, how?
balance the equation by adding this value to the right side , in this form
Factorize the left side
Eliminate the square on the left side
x+2.25= ± 3.010
Solve for x
x=+3.010-2.25=0.76
or
x=-3.010-2.25=-5.26
