[Part 2] Midterm Exam in MATH 153 - 1-50

In a quadratic equation, if the quantity under the radical is equal to zero, the roots are:

• imaginary numbers
• real and unequal
• Complex and unequal
• real and equal

What do you call a radical expressing an irrational number?

• Surd
• Complex number
• Radix
• Index

What do you call a statement of truth which is admitted without proof?

• Postulate
• Corollary
• Axiom
• Theorem

polygons are classified according to their:

• diagonals
• sides
• angles
• vertices

If n is the number of sides of a polygon, then the number of diagonals of a polygon is expressed as:

• n!
• (n-1)!
• (n/2)(n-3)
• (n/3)(n-2)

Body or space bounded by surface every point of which is equidistant from a point within.

• Circle
• Spheroid
• Ellipsoid
• Sphere

How do you call a polygon with 10,000 sides?

• Hectagon
• Chilliagon
• Myriagon
• Octacontagon

A regular polyhedron having 12 regular pentagons is called as:

• Icosahedron
• Octahedron
• Dodecahedron
• Tetrahedron

If y’’(x) = 0, then the point is:

• Minimum point
• Maximum point
• Inflection point
• Critical point

It is a type of polygon in which each interior angle must be less than or equal to 180°, and all vertices 'point outwards' away from the interior. How do you call this polygon?

• Concave Polygon
• Convex polygon
• Regular polygon
• Irregular polygon