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What is the radius for a circle whose equation is x2 + y2 = 36?A. 18B. 36C. 1296D. 6

What is the radius for a circle whose equation is x2 + y2 = 36?A. 18B. 36C. 1296D-example-1
User Nbkhope
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1 Answer

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19 votes

Answer:

D. 6

Step-by-step explanation:

The general equation for a circle centered at the origin (0,0) is:


x^2+y^2=r^2

Given the equation of the circle:


\begin{gathered} x^2+y^2=36 \\ \implies r^2=36 \\ r^2=6^2 \\ r=6 \end{gathered}

Thus, the radius of the given circle is 6.

User Nafeo Alam
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