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The circle shown is centered at the origin and contains the point (-4, -2). What is the length of the diameter of the circle? Round your answer to the nearest hundredth

The Circle Shown Is Centered At The Origin And Contains The Point 4 2 What Is The Length Of The Diameter Of The Circle Round Your Answer To The Nearest Hundred class=

Sagot :

Step-by-step explanation:

Equation for circle centered at origin:

x² + y² = r².

Therefore r² = (-4)² + (-2)² = 20, r = √20.

Hence d = 2r = 2√20 = 8.94 (2d.p.)