Geometry

Question 1 of 10

A parabola is the locus of a point that moves so that its distance from a fixed point equals its distance from

Question 2 of 10

The point where the diagonals of a square meet is its

Question 3 of 10

A cycloid is generated by a circle of radius 20 mm rolling one revolution. The base length is about

Question 4 of 10

A regular polygon with 6 sides is a

Question 5 of 10

An ellipse has two axes, called the

Question 6 of 10

The golden ratio is approximately

Question 7 of 10

Inscribing a circle in a triangle requires bisecting the

Question 8 of 10

The circumference of an ellipse is approximated by π(a + b) for small eccentricity. For a = 50 mm and b = 30 mm this gives about

Question 9 of 10

The locus of a point that stays a fixed distance from a straight line is

Question 10 of 10

A tangent to two circles that does not cross between them is an