I really need a math dictionary...

Question

I need the following definitions Please:

point
line
intersecting lines
parallel lines
vertical lines
horizontal lines
acute angle
obtuse angle
right angle
square
rectangle
trapezoid
rhombus
pentagon
hexagon
octagon
triangle
circle
chord
radius
diameter
cube
rectangular prism
cylinder

Thanks!!

Answer 1

http://www.amathsdictionaryforkids.com/