# Basic math glossary-H

Basic math glossary-H define words beginning with the letter H

h: h is an abbreviation for height.

Height: The distance from bottom to top.

Heptagon: A polygon that has seven sides.

Hexagon: A polygon with six angles and six sides.

Hexagonal prism: A prism that has hexagonal faces.

Histogram: A histogram is a graphical way to display information or data using bar.

Horizontal: A line that has no slope.

Horizontal axis: One of the axis in the coordinate system that has a slope of zero.

Hypotenuse: The longest side in a right triangle. The longest side is the one opposite to the right angle.

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1. ### Average age word problem

Aug 09, 16 01:40 PM

Average age of Dipu and Apu is 22 years. Average age of Dipu and Tipu is 24 years. Age of Dipu is 21 years. What are the ages of Apu, and tipu ? Let