Answer:
0.0207
Step-by-step explanation:
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It would be 36 units, why is that not an answer choice?
I am assuming you wrote the problem wrong. Is it a^2?
A^2 -4A-21=0
(A-7)(A+3)=0
A=7 A=-3, ignore the negative number because it doesn't make sense if you plug in for a.
length=a+3=7+3=10
Width=7=a
1 : the perimeter of a circle The circle measures 22 inches in circumference. 2 : the external boundary or surface of a figure or object : periphery from the center to the circumference of the sphere.
How to get answer by Mimiwhatsup (In Decimal Form):
Answer in Fraction Form: