Circles and Ellipses

What is the formula to calculate the circumference of a circle?
2πr
πr^2
πd
4πr
Which of the following is an equation of an ellipse?
(x-h)^2/a^2 + (y-k)^2/b^2 = 1
Y = mx + b
X^2 + y^2 = r^2
Y = ax^2 + bx + c
What is the relationship between the major axis and the minor axis of an ellipse?
What is the formula to calculate the area of a circle?
πr^2
2πr
πd
4πr
Which of the following is an equation of a circle?
(x-h)^2 + (y-k)^2 = r^2
Y = mx + b
X^2 + y^2 = r^2
Y = ax^2 + bx + c
What is the relationship between the foci and the vertices of an ellipse?
What is the formula to calculate the circumference of a circle given its diameter?
πd
2πr
πr^2
4πr
Which of the following is an equation of a hyperbola?
(x-h)^2/a^2 - (y-k)^2/b^2 = 1
Y = mx + b
X^2 + y^2 = r^2
Y = ax^2 + bx + c
What is the relationship between the foci and the directrix of a parabola?
What is the formula to calculate the area of an ellipse?
πab
2πr
πd
4πr
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