ahaney4655 ahaney4655
  • 22-08-2022
  • Mathematics
contestada

What is the radius for a circle whose equation is x² + y² = 64?
A. 8
B. 16
C. 64
D. 32

Respuesta :

meredith48034
meredith48034 meredith48034
  • 22-08-2022

Answer:

Step-by-step explanation:

the radius for a circle √(64) = 8

answer is A

Answer Link
jimrgrant1 jimrgrant1
  • 22-08-2022

Answer:

A

Step-by-step explanation:

the equation of a circle centred at the origin is

x² + y² = r² ( r is the radius )

x² + y² = 64 ← is in this form

with r² = 64 ( take square root of both sides )

r = [tex]\sqrt{64}[/tex] = 8

Answer Link

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